Главная Новые поступления Описание Шлюз Z39.50

Базы данных


Труды сотрудников Института химии твердого тела УрО РАН - результаты поиска

Вид поиска
Каталог книг и продолжающихся изданий
Сводный каталог иностранных периодических изданий, имеющихся в библиотеках УрО РАН
Сводный каталог отечественных периодических изданий, имеющихся в библиотеках УрО РАН
Каталог диссертаций и авторефератов диссертаций УрО РАН
Каталог препринтов УрО РАН (1975 г. - )
Имидж-каталог отечественных книг (до 2010 г.)
Имидж-каталог иностранных книг (до 2010 г.)
Алфавитно-предметный указатель (АПУ) ЦНБ УрО РАН
Публикации об УрО РАН
Изобретения уральских ученых
Интеллектуальная собственность (статьи из периодики)
Нанотехнологии
Демидовские премии
Гибель династии Романовых
История Урала
Личная библиотека С. В. Вонсовского
Книжная коллекция Шубиных
Труды Института высокотемпературной электрохимии УрО РАН
Труды Института истории и археологии УрО РАН
Труды сотрудников Института горного дела УрО РАН
Труды сотрудников Института органического синтеза УрО РАН
Труды сотрудников Института теплофизики УрО РАН
Труды сотрудников Института химии твердого тела УрО РАН
Расплавы
Труды сотрудников ЦНБ УрО РАН
Публикации Черешнева В.А.
Публикации Чарушина В.Н.
Каталог библиотеки ИЭРиЖ УрО РАН
Электронная энциклопедия «Дискурсология»
Библиометрия
Область поиска
 Найдено в других БД:Труды Института высокотемпературной электрохимии УрО РАН (1)
Формат представления найденных документов:
полныйинформационныйкраткий
Отсортировать найденные документы по:
авторузаглавиюгоду изданиятипу документа
Поисковый запрос: (<.>A=Kellerman, D. G.$<.>)
Общее количество найденных документов : 30
Показаны документы с 1 по 30
1.
Инвентарный номер: нет.
   
   S 98

   
    Synthesis, superconducting properties and structural (including electron diffraction) studies of NaxNbO2 and LixNbO2 [] / A. P. Tyutyunnik, V. G. Zubkov, D. G. Kellerman, V. A. Perelyaev, A. E. Kar'kin, G. Svensson // European Journal of Solid State and Inorganic Chemistry. - 1996. - V. 33, N 1. - С. 53-65 . - ISSN U013-4767
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
NaxNbO2 -- LixNbO2 -- Na -- Li -- Nb -- СИНТЕЗ -- СВОЙСТВА ВЫСОКОТЕМПЕРАТУРНЫЕ -- ВЫСОКОТЕМПЕРАТУРНЫЕ СВОЙСТВА -- ДИФРАКЦИЯ ЭЛЕКТРОННАЯ -- ЭЛЕКТРОННАЯ ДИФРАКЦИЯ -- СТРУКТУРА ЭЛЕКТРОННАЯ -- ЭЛЕКТРОННАЯ СТРУКТУРА -- НАТРИЙ -- НИОБИЙ -- ЛИТИЙ

Найти похожие
2.
Инвентарный номер: нет.
   
   S 98

   
    Synthesis, electron diffraction, crystal structure and physical properties of new superconductor NaxNbO2 [Text] / A. P. Tyutyunnik, V. G. Zubkov, D. G. Kellerman, V. A. Perelyaev // Int. Conf. on Powder Diffraction and Crystal Growth (St. Petersburg, June, 1994): Collect. Abstr. - 1994. - P167-168
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
NaxNbO2 -- Na -- Nb -- НАТРИЙ -- НИОБИЙ -- ОКСИДЫ -- СИНТЕЗ -- ДИФРАКЦИЯ ЭЛЕКТРОННАЯ -- ЭЛЕКТРОННАЯ ДИФРАКЦИЯ -- СТРУКТУРА КРИСТАЛЛИЧЕСКАЯ -- КРИСТАЛЛИЧЕСКАЯ СТРУКТУРА -- СВОЙСТВА ФИЗИЧЕСКИЕ -- ФИЗИЧЕСКИЕ СВОЙСТВА -- СВЕРХПРОВОДНИКИ

Найти похожие
3.
Инвентарный номер: нет.
   
   B 33

    Bazuev, G. V.
    Synthesis and magnetic properties of incommensurate phases A4CuMn2O9 (A = Ca, Sr) [] = Synthesis and magnetic properties of incommensurate phases A4CuMn2O9 (A = Ca, Sr) / G. V. Bazuev, V. N. Krasil'nikov, D. G. Kellerman // Journal of Alloys and Compounds. - 2003. - V. 352. - С. 190-196. - Bibliogr.: p. 195-196 (26 ref.) . - ISSN 0925-8388
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
CuO -- MnO2 -- CaMnO3 -- Ca4CuMn2O9 -- ТВЕРДОФАЗНЫЙ СИНТЕЗ -- СИНТЕЗ ТВЕРДОФАЗНЫЙ -- Sr4CuMn2O9 -- Ca4CuMn2O9 -- Cu -- Mn -- МЕДЬ -- МАРГАНЕЦ -- Ca -- Sr -- КАЛЬЦИЙ -- СТРОНЦИЙ -- СЛОЖНЫЕ ОКСИДЫ -- ОКСИДЫ СЛОЖНЫЕ -- МАГНИТНЫЕ СВОЙСТВА -- СВОЙСТВА МАГНИТНЫЕ -- КАРБОНАТЫ -- МАНГАНИТ КАЛЬЦИЯ
Аннотация: New complex oxides A4CuMn2O9 (A = Ca and Sr) belonging to the family of quasi-one-dimensional compounds have been obtained by solid-phase synthesis from Ca and Sr carbonates and oxides CuO and MnO2. It was established that both oxides are incommensurate and can be characterized by two sublattice with the same a, but different c (c1 and c2) parameters. Magnetic susceptibility measurement results were interpreted with allowance for exchange-bound dimers Mn(4+)-Mn(4+) and paramagnetic centers Cu(2+). Magnetic measurements revealed the presence of calcium manganate CaMnO3 in Ca4CuMn2O9

Найти похожие
4.
Инвентарный номер: нет.
   
   S 98

   
    Synthesis, superconducting properties and structural (including electron diffraction) studies of NaxNbO2 and LixNbO2 [Text] / A. P. Tyutyunnik, V. G. Zubkov, D. G. Kellerman, V. A. Perelyaev, A. E. Kar'kin, G. Svensson // European Journal of Solid State and Inorganic Chemistry. - 1996. - V. 33, N 1. - P53-65 . - ISSN 0992-4361
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ХИМИЯ -- СИНТЕЗ -- СВЕРХПРОВОДЯЩИЕ СВОЙСТВА -- СВОЙСТВА СВЕРХПРОВОДЯЩИЕ -- ДИФРАКЦИЯ ЭЛЕКТРОНОВ -- NaxNbO2 -- LixNbO2 -- ОКСОНИОБАТЫ

Найти похожие
5.
Инвентарный номер: нет.
   
   S 98

   
    Synthesis, electron diffraction, crystal structure and physical properties of new superconductor NaxNbO2 [Text] / A. P. Tyutyunnik, V. G. Zubkov, D. G. Kellerman, V. A. Perelyaev // Powder Diffraction and Crystal Growth: int. conf., June 1994, St.Petersburg: Collect. Abstr. - 1994. - P167-168
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ХИМИЯ -- NaxNbO2 -- СИНТЕЗ -- ЭЛЕКТРОНОГРАФИЯ -- КРИСТАЛЛИЧЕСКАЯ СТРУКТУРА -- СТРУКТУРА КРИСТАЛЛИЧЕСКАЯ -- СВОЙСТВА ФИЗИЧЕСКИЕ -- ФИЗИЧЕСКИЕ СВОЙСТВА -- СВЕРХПРОВОДНИКИ

Найти похожие
6.
Инвентарный номер: нет.
   
   S 46

   
    Semiconductor-metal transition in defect lithium cobaltite [Текст] / D. G. Kellerman, V. R. Galakhov, A. S. Semenova, Ya. N. Blinovskov, O. N. Leonidova // Physics of the Solid State. - 2006. - Vol. 48, № 3. - С. 548-556. - Библиогр. : с. 555 (36 назв.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ПЕРЕХОД ПОЛУПРОВОДНИК - МЕТАЛЛ -- КОБАЛЬТИТ ЛИТИЯ
Аннотация: The magnetic susceptibility, electrical conductivity, and x-ray photoelectron and x-ray absorption spectra of defect lithium cobaltites of the general formula Li1−xCoO2 are investigated. It is found that, for lithium cobaltites with x> 0.25, the magnetic susceptibility increases abruptly and the conductivity type changes at T~ 150 K. The assumption is made that the semiconductor–metal transition in defect lithium cobaltite is caused by the increase in the diffusion mobility of lithium ions with an increase in the temperature when there is a correlation between spatial distributions of lithium vacancies and “electron” holes

Полный текст
Найти похожие
7.
Инвентарный номер: нет.
   
   S 98

   
    Synthesis and SEM/SPM study of disperse materials [Текст] / I. G. Grigorov, I. V. Nikolaenko, D. G. Kellerman, B. A. Gizhevskii, L. V. Zolotukhina, Yu. G. Zainulin // Doklady Physical Chemistry. - 2008. - Vol. 421, № 2. - С. 203-206
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

\\\\Expert2\\nbo\\Doklady Physical Chemistry\\2008, V. 421, N 2, p.203-206.pdf
Найти похожие
8.
Инвентарный номер: нет.
   
   K 31

    Kellerman, D. G.
    Cluster Formation in LiNi0.4Fe0.6O2 [Текст] / D. G. Kellerman, E. V. Shalaeva, A. I. Gusev // Physics of the Solid State (Translation of Fizika Tverdogo Tela (Sankt-Peterburg)). - 2004. - Vol. 46, № 9. - С. 1686-1692. - Библиогр. : с. 1692 (32 назв.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ЛИТИЕВЫЕ ИОННЫЕ БАТАРЕИ -- ТВЕРДЫЕ РАСТВОРЫ -- АТОМНАЯ СТРУКТУРА
Аннотация: The structure of an LiNi0.4Fe0.6O2 cubic solid solution is determined using magnetic measurements and electron diffraction. It is found that this solid solution has a microinhomogeneous structure due to the formation of superparamagnetic clusters. The electron diffraction analysis of LiNi0.4Fe0.6O2 samples has revealed diffuse scattering characteristic of the substitutional short-range order in ordered solid solutions with a B1-type structure. It is shown that the short-range order is associated with the LiNiO2-type rhombohedral superstructure (space group ), i.e., with the redistribution of lithium and nickel atoms in the (111)B1 alternating planes. The short-range order is observed in regions with a nickel content higher than the mean nickel content corresponding to the macroscopic composition

Полный текст
Найти похожие
9.
Инвентарный номер: нет.
   

   
    1H and 7Li NMR in defect cobaltite Li0.6CoO2 [Текст] / D. G. Kellerman, S. P. Gabuda, N. A. Zhuravlev, A. S. Semenova, T. A. Denisova, R. N. Pletnev // Journal of Structural Chemistry. - 2007. - Vol. 48, № 3. - С. 462-466. - Библиогр. : с. 466 (15 назв.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
КОБАЛЬТИТ ЛИТИЯ -- ЯМР -- ЭЛЕКТРОПРОВОДНОСТЬ -- МАГНИТНАЯ ВОСПРИИМЧИВОСТЬ
Аннотация: Within a temperature range of 120-330 K, 7Li NMR spectra in Li0.6CoO2 are obtained. It is shown that as the temperature increases, both smooth and stepwise variation of 7Li NMR contact shifts occurs. The observed effects are explained by the occupation of the excited levels of cobalt ions. The stepwise change of the resonance line width depending on the temperature is revealed. It is driven by the features of the diffusive motion of lithium ions. The calculation of the 1 NMR line shape provides the determination of the ratio of one-, two-, and three-spin proton clusters in Li0.6CoO2 . xH2O

Полный текст
Найти похожие
10.
Инвентарный номер: нет.
   
   L 66

   
    Li NMR study of phase transition in nonstoichiometric lithium cobaltate [Текст] / D. G. Kellerman, S. P. Gabuda, N. A. Zuravlev, A. S. Semenova, T. A. Denisova, R. N. Pletnev // Izvestiya Rossiiskoi Akademii Nauk, Seriya Fizicheskaya. - 2006. - Vol. 70, № 7. - С. 974-976
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

Найти похожие
11.
Инвентарный номер: нет.
   
   P 36

   
    Peculiarities of antiferromagnetic ordering in orthorhombic LiMnO2 [Текст] / D. G. Kellerman, N. A. Zhuravlev, S. V. Verkhovskii, E. Yu. Medvedev, A. V. Korolev, J. E. Medvedeva // Physics of the Solid State. - 2008. - Vol. 50, № 7. - С. 1294-1302. - Библиогр. : с. 1301 (20 назв.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
АНТИФЕРРОМАГНЕТИКИ -- МАГНИТНАЯ ВОСПРИИМЧИВОСТЬ -- МАНГАНИТ ЛИТИЯ
Аннотация: Data on the antiferromagnetic ordering in orthorhombic lithium manganite LiMnO2 are obtained from magnetic-susceptibility, calorimetry, and nuclear magnetic resonance studies. The minimal hysteresis and the absence of jumps in the temperature dependences of the sublattice magnetization M(T) and the magnetic susceptibility near TN indicate that the ordering occurs through a continuous second-order phase transition. Within the critical temperature range, the M(T–TN) variation is satisfactorily described by a power-law dependence with a critical exponent β= 0.25(4), which is substantially smaller than that predicted for 3D magnetic systems with isotropic Heisenberg exchange. The band structure of orthorhombic LiMnO2 is calculated using the LMTO–ASA method. Taking into account the spin states of manganese ions, an adequate pattern is obtained for the density-of-states distribution with an energy gap near the Fermi level (~0.7 eV), which is in agreement with the measured electrical parameters of lithium manganite. The calculations demonstrate that the exchange interactions between Mn3+ ions leading to antiferromagnetic ordering are significantly anisotropic. It is found that small paramagnetic regions persist in the manganite below the Néel temperature, and it is concluded that the reason for this is partial structural disordering of LiMnO 2 . As a result, a certain fraction of the manganese positions is occupied by lithium ions (Li Mn ) and vise versa (Mn Li ). These defects are not involved in the formation of the ordered magnetic structure and compose a paramagnetic fraction

Полный текст
Найти похожие
12.
Инвентарный номер: нет.
   
   M 17

   
    Magnetic transformations and structure disorder in the lithium manganite LiMnO2 [Текст] / D. G. Kellerman, N. A. Zhuravlev, A. I. Kurbakov, V. G. Zubkov, A. P. Tyutyunnik // Izvestiya Rossiiskoi Akademii Nauk, Seriya Fizicheskaya. - 2007. - Vol. 71, № 5. - С. 644-647
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

Найти похожие
13.
Инвентарный номер: нет.
   
   C 91

   
    Crystal structure and magnetic properties of complex oxides Mg4-xNixNb2O9, 0=x=4 [Текст] / N. V. Tarakina, E. A. Nikulina, J. Hadermann, D. G. Kellerman, A. P. Tyutyunnik, I. F. Berger, V. G. Zubkov // Journal of Solid State Chemistry. - 2007. - Vol. 180, № 11. - С. 3180-3187
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

Найти похожие
14.
Инвентарный номер: нет.
   
   S 89

   
    Structural and magnetic properties of orthorhombic LixMnO2 [Текст] / D. G. Kellerman, J. E. Medvedeva, V. S. Gorshkov, A. I. Kurbakov, V. G. Zubkov, A. P. Tyutyunnik, V. A. Trunov // Solid State Sciences. - 2007. - Vol. 9, № 2. - С. 196-204
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

Найти похожие
15.
Инвентарный номер: нет.
   
   N 30

    Naumovich, E. N.
    Defect formation in LaGa(Mg,Ni)O3-delta: A statistical thermodynamic analysis validated by mixed conductivity and magnetic susceptibility measurements [Текст] / E. N. Naumovich, V. V. Kharton, A. A. Yaremchenko, M. V. Patrakeev, D. G. Kellerman, D. I. Logvinovich, V. L. Kozhevnikov // Physical Review B: Condensed Matter and Materials Physics. - 2006. - Vol. 74, № 6. - С. 064105/1-064105/12. - Библиогр. : с. 064105/11 (55 назв.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
МАГНИТНАЯ ВОСПРИИМЧИВОСТЬ -- ПРОВОДИМОСТЬ -- ГАЛЛАТ ЛАНТАНА -- ПЕРОВСКИТЫ
Аннотация: A statistical thermodynamic approach to analyze defect thermodynamics in strongly nonideal solid solutions was proposed and validated by a case study focused on the oxygen intercalation processes in mixed-conducting LaGa0.65Mg0.15Ni0.20O3−delta perovskite. The oxygen nonstoichiometry of Ni-doped lanthanum gallate, measured by coulometric titration and thermogravimetric analysis at 923–1223 K in the oxygen partial pressure range 5 10−5 to 0.9 atm, indicates the coexistence of Ni2+, Ni3+, and Ni4+ oxidation states. The formation of tetravalent nickel was also confirmed by the magnetic susceptibility data at 77–600 K, and by the analysis of p-type electronic conductivity and Seebeck coefficient as function of the oxygen pressure at 1023–1223 K. The oxygen thermodynamics and the partial ionic and hole conductivities are strongly affected by the pointdefect interactions, primarily the Coulombic repulsion between oxygen vacancies and/or electron holes and the vacancy association with Mg2+ cations. These factors can be analyzed by introducing the defect interaction energy in the concentration-dependent part of defect chemical potentials expressed by the discrete Fermi-Dirac distribution, and taking into account the probabilities of local configurations calculated via binomial distributions

Полный текст
Найти похожие
16.
Инвентарный номер: нет.
   
   E 43

   
    Electronic structure and x-ray spectra of defective oxides LixCoO2 / V. R. Galakhov [et al.] // Physical Review B. - 2006. - Vol. 74, № 4. - P.045120(1-6) : il. - Bibliogr. : p. 045120(5-6) (26 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
СТРУКТУРА ЭЛЕКТРОННАЯ -- СПЕКТРЫ РЕНТГЕНОВСКИЕ -- ОКСИДЫ -- LiCoO2
Аннотация: X-ray absorption, resonant x-ray emission, and x-ray photoelectron spectra of the valence band and core levels have been measured for LixCoO2 (0.6<=x<=1.0,. Resonant O K(alfa) x-ray emission spectra of LiCoO2,,showed localized excitonic states due to a dd transition between unoccupied and occupied Co 3d states. On the basis of measurements of Co 3s x-ray photoelectron and Co 2p and O 1s x-ray absorption spectra it was established that in defective cobaltites the electronic holes are localized mainly in O 2p states. Evidence of phase separation in LixCoO2 has been found

Полный текст
Найти похожие
17.
Инвентарный номер: нет.
   
   G 15

    Galakhov, V. R.
    Electronic structure of defective lithium cobaltites LixCoO2 / V. R. Galakhov, M. Neumann, D. G. Kellerman // Applied Physics A. - 2009. - Vol. 94. - P.497-500 : il. - Bibliogr. : p. 500 (18 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
КОБАЛЬТИТ ЛИТИЯ -- СТРУКТУРА ЭЛЕКТРОННАЯ -- РЕНТГЕНОВСКИЕ ЭМИССИОННЫЕ СПЕКТРЫ
Аннотация: X-ray absorption, resonant X-ray emission, and??X-ray photoelectron spectroscopical methods have been applied for the study of the electronic structure of defective lithium cobaltites LixCoO2 (0.6 . x . 1.0). Resonant O K alfa X-ray emission spectra of LiCoO2 showed localized excitonic??states due to a dd transition between occupied and??unoccupied Co 3d states. On the base of measurements of Co 3s X-ray photoelectron, Co 2p, and O 1s X-ray absorption spectra, it was established that in defective cobaltites??the electronic holes are localized mainly in O 2p states. An evidence of phase separation in LixCoO2 has been found. It was shown that the semiconductor-to-metal transition in LixCoO2 (x <0.76) at about 160 K is not accompanied by??changes in the Co 3d electronic configuration which remains 3d6

\\\\Expert2\\nbo\\Applied Physics A Materials Science and Processing\\2009, v. 94, N 3, p. 497-500.pdf
Найти похожие
18.
Инвентарный номер: нет.
   
   K 31

    Kellerman, D. G.
    Low-Dimensional Exchange Interactions, Structural Deformation, and Antiferromagnetic Ordering in Lithium Manganite LiMnO2 / D. G. Kellerman, N. A. Zhuravlev // Bulletin of the Russian Academy of Sciences: Physics. - 2008. - Vol. 72, № 8. - P. 1155-1158 : il. - Bibliogr. : p. 1159 (9 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
МАНГАНИТ ЛИТИЯ -- СТРУКТУРА КРИСТАЛЛИЧЕСКАЯ -- МАГНИТНЫЕ ПРЕВРАЩЕНИЯ
Аннотация: Structure deformation in lithium manganite LiMnO2 has been analyzed. It is shown that suppression of the Jahn–Teller effect with a decrease in temperature is related to striction effects, which are caused by intercluster exchange interactions. It is concluded that low-dimensional interactions play an important role in the formation of magnetic properties of lithium manganite

\\\\Expert2\\nbo\\Bulletin of the Russian Academy of Sciences Physics\\2008, V. 72, N 8, P.1155-1158.pdf
Найти похожие
19.
Инвентарный номер: нет.
   
   M 17

   
    Magnetic Transformations and Structural Disorder in Lithium Manganite LiMnO / D. G. Kellerman, N. A. Zhuravlev, A. I. Kurbakov, V. G. Zubkov, A. P. Tyutyunnik // Bulletin of the Russian Academy of Sciences: Physics. - 2007. - Vol. 71, № 5. - P. 621-624 : il. - Bibliogr. : p. 624 (8 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
МАНГАНИТ ЛИТИЯ -- МАГНИТНЫЕ ПЕРЕХОДЫ -- СТРУКТУРЫ НЕУПОРЯДОЧЕННЫЕ
Аннотация: Investigation of the structural and magnetic characteristics of lithium manganite LiMnO2 with a variable Li/Mn ratio has been performed. A significant difference in the 7Li NMR spectra in the paramagnetic and antiferromagnetic manganite phases is revealed. It is shown that the common feature of the compositions studied is a high degree of structural disorder, which manifests itself in the presence of manganese ions in lithium positions (MnLi) and lithium ions in manganese positions (LiMn); this effect is also characteristic of the stoichiometric composition

\\\\Expert2\\nbo\\Bulletin of the Russian Academy of Sciences Physics\\2007, V. 71, N 5, P. 621-624.pdf
Найти похожие
20.
Инвентарный номер: нет.
   
   S 89

   
    Structural Disordering in Cr-Doped Li4Ti5O12 Spinels / N. A. Zhuravlev, N. A. Mukhina, D. G. Kellerman, V. S. Gorshkov // Bulletin of the Russian Academy of Sciences: Physics. - 2009. - Vol. 73, № 11. - P. 1522-1524 : il. - Bibliogr. : p. 1524 (8 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ШПИНЕЛИ -- ЛИТИЙ -- ЛЕГИРОВАНИЕ -- ХРОМ
Аннотация: The processes of lithium redistribution in the structure of cubic Li4Ti5O12 spinel, caused by both chromium doping and thermal activation, have been investigated by nuclear magnetic resonance. It is shown that Li ions migrate from tetra to octahedral crystallographic positions with an increase in temperature. This process becomes more pronounced at temperatures above 400 K. In contrast, the fraction of tetrahedrally coordinated Li increases as a result of doping with chromium

\\\\Expert2\\nbo\\Bulletin of the Russian Academy of Sciences Physics\\2009, V. 73, N 11, P.1522-1524.pdf
Найти похожие
21.
Инвентарный номер: нет.
   
   G 65

    Gorshkov, V. S.
    Effect of Structural Disordering on the Transport Properties of LiNiO2 / V. S. Gorshkov, E. E. Flyatau, D. G. Kellerman // Inorganic Chemistry. - 2000. - Vol. 36, № 9. - P. 959-963 : il. - Bibliogr. : p. 963 (10 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
СТРУКТУРНЫЙ БЕСПОРЯДОК -- СВОЙСТВА ТРАНСПОРТНЫЕ -- ОКСИД ЛИТИЕВО-НИОБИЕВЫЙ
Аннотация: The effect of structural disordering on the transport properties of LiNiO2 was studied over wide ranges of temperatures and oxygen pressures

Полный текст
Найти похожие
22.
Инвентарный номер: нет.
   
   Z 90

    Zuev, M. G.
    Oxidation State of Vanadium in Eu1 – xYxVTa2O9 Solid Solutions / M. G. Zuev, D. G. Kellerman, V. A. Perelyaev // Inorganic Materials. - 2001. - Vol. 37, № 2. - P186-188 : il. - Bibliogr. : p. 188 (9 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ОКИСЛЕНИЕ -- ВАНАДАТЫ -- МАГНИТНАЯ ВОСПРИИМЧИВОСТЬ -- РАСТВОРЫ ТВЕРДЫЕ
Аннотация: The magnetic susceptibility of Eu1- xYxVTa2O9(0 < x< 0.20) solid solutions was found to vary nonmonotonically with Y content. This result was interpreted as due to changes in the proportion of V4+ ions. Increasing the synthesis temperature from 1100 to 1300°C was shown to raise the proportion of V4+ in EuVTa2O9 from 9.87 to 12.03%. The highest light yield was observed at x~0.05, corresponding to the smallest V4+/V5+ ratio

Полный текст
Найти похожие
23.
Инвентарный номер: нет.
   
   E 43

   
    Electronic Structure, X-ray Spectra, and Magnetic Properties of the LiCoO2 –beta and NaxCoO2 Nonstoichiometric Oxides / V. R. Galakhov, V. V. Karelina, D. G. Kellerman, V. S. Gorshkov, N. A. Ovechkina, M. Neumann // Physics of the Solid State. - 2002. - Vol. 44, № 2. - P266-273 : il. - Bibliogr. : p. 273 (22 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
НЕСТЕХИОМЕТРИЯ -- МАГНИТНАЯ ВОСПРИИМЧИВОСТЬ -- ОКСИД КОБАЛЬТА
Аннотация: This paper reports on a study of the magnetic susceptibility, x-ray photoelectron, and x-ray emission spectra of the LiCoO2 –beta and NaxCoO2 nonstoichiometric oxides. The valence-band structure of LiCoO2 was analyzed. The hole concentration in the oxygen 2p band of LiNiO2 and LiCoO2 was derived from measurements of the O K alfa emission spectra. Measurements of Co 2p and Co 3s photoelectron spectra showed that the Co3+ ions reside in the low-spin state with S = 0. The deficiency of oxygen in the LiCoO2 –delta reduced oxides gives rise to the formation of divalent cobalt ions. The deficiency of the alkali metal in NaxCoO2 initiates the formation of holes in the oxygen 2p band while not changing the electronic configuration d6 of the cobalt-ion ground state

Полный текст
Найти похожие
24.
Инвентарный номер: нет.
   
   O-66

   
    Optical Absorption and Nuclear Magnetic Resonance in Lithium Titanium Spinel Doped by Chromium / D. G. Kellerman, N. A. Mukhina, N. A. Zhuravlev, M. S. Valova, V. S. Gorshkov // Physics of the Solid State. - 2010. - Vol. 52, № 3. - P459-464 : il. - Bibliogr. : p. 463-464 (34 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ОПТИЧЕСКАЯ АБСОРБЦИЯ -- ЯМР -- ЯДЕРНЫЙ МАГНИТНЫЙ РЕЗОНАНС -- ТИТАНАТ ЛИТИЯ -- ШПИНЕЛИ -- ДОПИРОВАНИЕ -- ХРОМ
Аннотация: The optical absorption and nuclear magnetic resonance spectra of Li4 – xCr3xTi5 – 2xO12 (x = 0, 0.01, 0.02, 0.04) solid solutions have been investigated. It has been found that, in the Li4Ti5O12 spinel, lithium ions migrate from tetrahedral to octahedral positions with increasing temperature. Doping of chromium to the spinel favors an increase in the fraction of tetrahedrally coordinated lithium and hinders diffusion

Полный текст
Найти похожие
25.
Инвентарный номер: нет.
   
   E 27

   
    Effects of Structural Disorder in Lithium Manganite and Titanate Oxides / Yu. G. Chukalkin, A. E. Teplykh, D. G. Kellerman, V. S. Gorshkov // Physics of the Solid State. - 2010. - vol. 52, № 5. - P1006-1009 : il. - Bibliogr. : p. 1009 (11 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
МАНГАНИТ ЛИТИЯ -- ТИТАНАТЫ -- СТЕХИОМЕТРИЯ
Аннотация: The structures and magnetic states of stoichiometric lithium manganite LiMn2O4 and manganites and titanates Li1.33Mn1.67O4 and Li1.33Ti1.67O4 with excess lithium in both the initial (as-synthesized) state and after irradiation by fast (Eeff ≥ 1 MeV) neutrons with a fluence of 2 × 1020 cm–2 have been studied using neutron diffraction, X-ray diffraction, and magnetic methods. It has been established that the irradiation brings about a noticeable redistribution of manganese, titanium, and lithium cations over nonequivalent tetrahedral (8a) and octahedral (16d) positions of a spinel lattice. This structural disorder causes a radical change in the physical properties of the materials under study. The charge order existing in the initial LiMn2O4 sample is destroyed. There arises a strong intersublattice indirect exchange interaction Mn(8a)–O–Mn(16d). The disorder is accompanied by the antiferromagnet–ferrimagnet (LiMn2O4) and paramagnet–ferrimagnet (Li1.33Mn1.67O4) magnetic transitions

Полный текст
Найти похожие
26.
Инвентарный номер: нет.
   
   M 17

   
    Magnetism of LiMn2O4 Manganite in Structurally Ordered and Disordered States / Yu. G. Chukalkin, A. E. Teplykh, A. N. Pirogov, D. G. Kellerman // Physics of the Solid State. - 2010. - vol. 52, № 12. - P2545-2551 : il. - Bibliogr. : p. 2551 (17 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
МАГНЕТИЗМ -- МАНГАНИТ ЛИТИЯ -- СТЕХИОМЕТРИЯ
Аннотация: The specific features of the crystal structure and the magnetic state of stoichiometric lithium man ganite in the structurally ordered Li[Mn2]O4 and disordered Li1 – δMnδ[Mn2 – δLiδ]O4 (δ = 1/6) states have been investigated using neutron diffraction, X ray diffraction, and magnetic methods. The structurally disordered state of the manganite was achieved under irradiation by fast neutrons (Eeff ≥ 1 MeV) with a fluence of 2 × 1020 cm–2 at a temperature of 340 K. It has been demonstrated that, in the initial sample, the charge ordering of manganese ions of different valences arises at room temperature, which is accompanied by orthorhombic distortions of the cubic spinel structure, and the long-range antiferromagnetic order with the wave vector k = 2π/c(0, 0, 0.44) is observed at low temperatures. It has been established that the structural disordering leads to radical changes in the structural and magnetic states of the LiMn2O4 manganite. The charge ordering is destroyed, and the structure retains the cubic symmetry even at a temperature of 5 K. The antiferromagnetic type of ordering transforms into ferrimagnetic ordering with local spin deviations in the octahedral sublattice due to the appearance of intersublattice exchange interactions

Полный текст
Найти похожие
27.
Инвентарный номер: нет.
   
   K 31

    Kellerman, D. G.
    Structure, Properties, and Application of Lithium–Manganese Spinels / D. G. Kellerman, V. S. Gorshkov // Russian Journal of Electrochemistry. - 2001. - Vol. 37, № 12. - P1227-1236. - Bibliogr. : p. 1234-1236 (122 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ЛИТИЙ-МАРГАНЦЕВЫЕ ШПИНЕЛИ -- СТЕХИОМЕТРИЯ
Аннотация: Literature data of the past 15 years on the physicochemical and electrochemical properties of Li– Mn spinels are reviewed. Physicochemical characteristics of stoichiometric and defected spinels, chemical deintercalation of lithium out of spinels, electrochemical processes in spinels, syntheses of spinels with improved electrochemical characteristics, and doped spinels are perused

Полный текст
Найти похожие
28.
Инвентарный номер: нет.
   
   E 27

   
    Effect of Electronic State of Ions on the Electrochemical Properties of Layered Cathode Materials LiNi1-2xCoxMnxO2 / N. V. Kosova, E. T. Devyatkina, V. V. Kaichev, D. G. Kellerman // Russian Journal of Electrochemistry. - 2008. - Vol. 44, № 5. - P543-549. - Bibliogr. : p. 548-549 (31 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
СЛОИСТЫЕ КАТОДНЫЕ МАТЕРИАЛЫ -- ЛИТИЕВО-ИОННЫЕ БАТАРЕИ -- МАГНИТНАЯ ВОСПРИИМЧИВОСТЬ
Аннотация: The cathode materials of the composition LiNi1– 2xCoxMnxO2(x= 0.1, 0.2. 0.33) synthesized from the Ni, Co, Mn mixed hydroxides and LiOH by using mechanical activation method are studied. It is shown that all synthesized compounds have layered structure described by the space group R-3m. With the decreasing of the nickel content the cell volume and the degree of structure disordering decrease. According to XPS data, the electronic main state of d-ions at the prepared samples' surfaces corresponds to Ni2+,Co3+, and Mn4+. Anincrease in the nickel content leads to the increase of the Ni2p3/2and Co2p3/2binding energy, which points to the change in the Me–O bond covalence. According to magnetic susceptibility measurements data, the nickel ions in LiNi0.6Co0.2Mn2O 2 exist in the two oxidation states: Ni2+and Ni3+. It is shown that this sample has the highest specific discharge capacity (~170 mAh/g). The positions of redox peaks in the differential capacitance curves depend on the sample composition: with the increasing of nickel content they are shifted toward lower voltages

Полный текст
Найти похожие
29.
Инвентарный номер: нет.
   
   E 43

   
    Electronic structure of LiMnO2: X-ray emission and photoelectron spectra and band structure calculations / V. R. Galakhov, M. A. Korotin, N. A. Ovechkina, E. Z. Kurmaev, V. S. Gorshkov, D. G. Kellerman, S. Bartkowski, M. Neumann // European Physical Journal B: Condensed Matter Physics. - 2000. - Vol. 14. - P281-286 : il. - Bibliogr. : p. 286 (27 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
МАНГАНИТ ЛИТИЯ -- РЕНТГЕНОВСКАЯ ФОТОЭЛЕКТРОННАЯ СПЕКТРОСКОПИЯ -- ФЛУОРЕСЦЕНЦИЯ
Аннотация: The electronic structure of LiMnO2 and Li2MnO3 was studied by means of X-ray photoelectron and soft X-ray emission spectroscopy. For LiMnO2, LSDA and LSDA+U calculations were carried out. The LSDA+U calculations are in rather good agreement with the measured valence-band structure as well as with the magnetic and electrical properties of LiMnO2. It is shown that the band gap in LiMnO2 is determined by the charge-transfer effect

Полный текст
Найти похожие
30.
Инвентарный номер: нет.
   
   X 10

   
    X-ray spectra and electronic structure of LixNbO2 superconductor and other niobium oxide compounds / V. M. Cherkashenko, M. A. Korotin, V. I. Anisimov, V. V. Shumilov, D. G. Kellerman, V. G. Zubkov, E. Z. Kurmaev // Zeitschrift für Physik B Condensed Matter. - 1993. - Vol. 93. - P417-424. - Bibliogr. : p. 424 (17 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ОКСИД НИОБИЯ -- ЛИТИЕВАЯ ПРОВОДИМОСТЬ
Аннотация: X-ray emission NbL&.15 and OK~ spectra and Ols total photoelectron yield spectra for superconductor Li0.71NbO2 and other niobium oxide compounds NbO, BaNb406, BazNbsO9, BaNbsQ, LiNbQ, NbQ, LiNbO3 were investigated. It was found that in stoichiometric LiNbO2, niobium oxidation degree is 3 +. Under the lithium deintercalation down to Li0.71NbO2 composition, the niobium ions oxidation degree increases up to 3.3 +. As more electrons are supplied by Nb to fill the O2p band, the degree of O2p-Nb4d hybridization is increased. Using the full-potential linear muffin-tin orbital method, the self-consistent band structure calculations of Li~NbO 2 (x= 1.0; 0.7; 0.5) compounds were carried out. Agreement between partial Nb4d and O2p densities of states and corresponding X-ray spectra was observed. For the x = 0.7; 0.5 the Fermi level is placed on the slope of sharp density of states peak formed mostly by the Nb4d states. With the decrease of x the p-d hybridization becomes stronger, although remains well below the values typical for the high-temperature superconductors

Полный текст
Найти похожие
 
Описание базы данных
Стандартный
По словарю
Расширенный
ГРНТИ-навигатор
Статистика обращений

Сиглы отделов ЦНБ УрО РАН


  бр.ф. - Бронированный фонд

  бф - Научно-библиографический отдел

  БХЛ - Фонд художественной литературы

  ИИиА -Фонд исторической литературы в ЦНБ УрО РАН

  ИМЕТ -Отдел ЦНБ в Институте металлургии УрО РАН

  кх - Отдел фондов (книгохранениe)

  МБА - Межбиблиотечный абонемент

  мф - Методический фонд

  ок - Отдел научной каталогизации

  оку - Отдел комплектования и учета

  орф - Обменно-резервный фонд

  пф - Читальный зал деловой и патентной информации

  рк - Фонд редкой книги

  ч/з - Главный читальный зал

  эр - Зал электронных ресурсов

  

Сиглы библиотек институтов и НЦ УрО РАН
© Международная Ассоциация пользователей и разработчиков электронных библиотек и новых информационных технологий
(Ассоциация ЭБНИТ)
Яндекс.Метрика