Magnetic and transport properties of Gd0.9A0.1CoO3-δ (A = Ba, Sr)

被引：4

作者：

Kazak, N. V. ^{[1
]}

Ivanova, N. B. ^{[2
]}

Michel, C. R. ^{[3
]}

Ovchinnikov, S. G. ^{[1
,4
]}

Pashkevich, Yu. G. ^{[5
]}

Balaev, A. D. ^{[1
]}

Bondarenko, G. V. ^{[1
]}

机构：

[1] Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia

[2] Siberian Fed Univ, Polytech Inst, Krasnoyarsk 660074, Russia

[3] Univ Guadalajara, CUCEI, Dept Fis, Guadalajara 44430, Jalisco, Mexico

[4] Siberian Fed Univ, Inst Nat & Humanitary Res, Krasnoyarsk 660041, Russia

[5] AA Galkin Donetsk Phystech Natl Acad Sci Ukraine, UA-83114 Donetsk, Ukraine

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2009年 / 321卷 / 09期

基金：

俄罗斯基础研究基金会;

关键词：

Perovskite structure; Doped cobaltite; Magnetic susceptibility; Metal-insulator transition; PR; LA; LN; TRANSITION; SPIN; EU; SM; ND;

D O I：

10.1016/j.jmmm.2008.11.087

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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 insulator-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.

引用

页码：1266 / 1271

页数：6

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