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, Antiferromagnetism, Barium, Cobalt compounds, Electric conductivity, Ferromagnetic materials, Ferromagnetism, Gadolinium, Metal insulator boundaries, Oxide minerals, Paramagnetic materials, Perovskite, Phase separation, Semiconductor insulator boundaries, Transport properties, Antiferromagnetic, Doped samples, Electrical conductivity measurements, Ferromagnetic transitions, Insulator-metal transitions, Magnetic and transport properties, Magnetic behaviors, 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.
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