M 17 Magnetoresistive Properties of Bulk Polycrystalline Manganites / A. P. Nosov, V. G. Vasil'ev, E. V. Vladimirova, E. V. Mikhaleva, B. V. Slobodin, V. V. Ustinov // Russian Journal of Nondestructive Testing. - 2001. - Vol. 37, № 3. - P181-185 : il. - Bibliogr. : p. 184-185 (9 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): МАГНИТОСОПРОТИВЛЕНИЕ -- МАНГАНИТЫ ПОЛИКРИСТАЛЛИЧЕСКИЕ Аннотация: The paper presents investigations of magnetic transport properties of prospective materials for fabricating magnetic field transducers, namely, bulk polycrystalline manganites La1ÐxAxMnO3 (here A = Sr, Ba, or Pb, and 0.15 < x < 0.55) over a temperature range of 260Ð300 K. The nonlinearity of the magnetoresistance of these materials as a function of magnetic field intensity has been studied at room temperature. Among the materials investigated in the given temperature range, the composition La0.60Sr0.40MnO3 is most susceptible to the applied magnetic field, and the nonlinearity of its characteristic is minimal Полный текст |