Magnetoresistance hysteresis of bulk textured Bi1.8Pb0.3Sr1.9Ca2Cu3Ox + Ag ceramics and its anisotropy

Тип публикации: статья из журнала

Год издания: 2010

Идентификатор DOI: 10.1016/j.physc.2009.10.007

Ключевые слова: Magnetoresistance, Anisotropy, Scaling, Magnetization, Bi2223, BSCCO, Anisotropy, Bi2223, BSCCO, Magnetization, Magnetoresistance, Scaling, Bi-2223, BSCCO, External fields, Granular superconductors, Magnetic induction, Parameters characterizing, Anisotropy, Calcium, Ceramic materials, Crystallites, Electric resistance, Hysteresis, Lead, Magnetic moments, Magnetoelectronics, Magnetoresistance, Nanocrystalline alloys, Silver, Superconducting materials, Superconductivity, Magnetic field effects

Аннотация: Magnetoresistance of bulk textured Bi1.8Pb0.3Sr1.9Ca2Cu3Ox + Ag ceramics has been studied in the magnetic fields applied parallel and perpendicular to a-b planes of Bi2223 crystallites. Besides well known anisotropy of magnetoresistance of textured superconductors (R-H parallel to c > RH parallel to a-b), anisotropic hysteresis of R(H) dependences was investigated. Parameters characterizing hysteretic R(H) curves differ for the cases H parallel to c and H parallel to a-b. This behavior is explained within the model of a granular superconductor where the total magnetic induction in the intercrystallite boundaries is superposition of the external field and the magnetic field induced by dipole magnetic moments of neighbor crystallites. (C) 2009 Elsevier B.V. All rights reserved.

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Издание

Журнал: PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS

Выпуск журнала: Vol. 470, Is. 1

Номера страниц: 61-67

ISSN журнала: 09214534

Место издания: AMSTERDAM

Издатель: ELSEVIER SCIENCE BV

Авторы

  • Balaev D.A. (Siberian Federal University)
  • Popkov S.I. (L.V. Kirensky Institute of Physics)
  • Semenov S.V. (Siberian Federal University)
  • Bykov A.A. (L.V. Kirensky Institute of Physics)
  • Shaykhutdinov K.A. (Siberian Federal University)
  • Gokhfeld D.M. (L.V. Kirensky Institute of Physics)
  • Petrov M.I. (L.V. Kirensky Institute of Physics)

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