Magnetic and transport properties of Gd(0.9)A(0.1)CoO(3-delta) (A = Ba, Sr)

Описание

Тип публикации: статья из журнала

Год издания: 2009

Идентификатор DOI: 10.1016/j.jmmm.2008.11.087

Ключевые слова: Perovskite structure, Doped cobaltite, Magnetic susceptibility, Metal-insulator transition, Doped cobaltite, Magnetic susceptibility, Metal-insulator transition, Perovskite structure, Antiferromagnetism, Barium, Cobalt compounds, Electric conductivity, Ferromagnetic materials, Ferromagnetism, Gadolinium, Magnetic susceptibility, Metal insulator boundaries, Oxide minerals, Paramagnetic materials, Perovskite, Phase separation, Semiconductor insulator boundaries, Transport properties, Antiferromagnetic, Doped cobaltite, Doped samples, Electrical conductivity measurements, Ferromagnetic transitions, Insulator-metal transitions, Magnetic and transport properties, Magnetic behaviors, Perovskite structure, Temperature ranges, Transport datum, X- ray diffractions, Metal insulator transition

Аннотация: The X-ray diffraction, magnetization and electrical conductivity measurements for Gd(0.9)A(0.1)CoO(3-delta) (A = Ba, Sr) have been made. The complicated magnetic behavior, including the paramagnetic-ferromagnetic-antiferromagnetic and paramagnetic-ferromagnetic transitions, was found for Ba- and Sr-doped samples. The gradual insulaПоказать полностьюtor-metal transitions were observed in a wide temperature range T = 600-800 K. The complex magnetic and transport data could be explained on the basis of the structural phase separation. (C) 2009 Elsevier B.V. All rights reserved.

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Издание

Журнал: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS

Выпуск журнала: Vol. 321, Is. 9

Номера страниц: 1266-1271

ISSN журнала: 03048853

Место издания: AMSTERDAM

Издатель: ELSEVIER SCIENCE BV

Авторы

  • Kazak N.V. (Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia)
  • Ivanova N.B. (Siberian Fed Univ, Polytech Inst, Krasnoyarsk 660074, Russia)
  • Michel C.R. (Univ Guadalajara, CUCEI, Dept Fis, Guadalajara 44430, Jalisco, Mexico)
  • Ovchinnikov S.G. (Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Inst Nat & Humanitary Res, Krasnoyarsk 660041, Russia)
  • Pashkevich Yu. G. (AA Galkin Donetsk Phystech Natl Acad Sci Ukraine, UA-83114 Donetsk, Ukraine)
  • Balaev A.D. (Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia)
  • Bondarenko G.V. (Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia)

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