S 68 Smolyak, B. M. Suppression of magnetic relaxation in a high-temperature superconductor placed near a ferromagnet [Electronic resource] / B. M. Smolyak, G. V. Ermakov // Technical Physics Letters . - 2010. - Vol.36, №5. - P461-463. - Bibliogr. : p. 463 (12 ref.) Рубрики: ФИЗИКА Кл.слова (ненормированные): MAGNETIC RELAXATION -- HIGH TEMPERATURE -- FERROMAGNET Аннотация: The phenomenon of the suppression of magnetic relaxation in a high temperature superconduc tor (HTSC) with trapped magnetic flux has been observed when the superconducting sample approached a ferromagnet. It is suggested that the ferromagnet is magnetized in the magnetic field of the sample and, in turn, induces currents in the superconductor, which circulate in a direction opposite to that of the trapped flux current. As a result, the magnetic structure becomes stable with respect to the magnetic flux creep because oppositely directed Lorentz forces can act upon different regions of vortices. \\\\expert2\\NBO\\Technical Physics Letters (Письма в ЖТФ)\\2010, v. 36, N. 5, p.461.pdf |