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

作者：Kazak N V^*; Ivanova N B; Michel C R; Ovchinnikov S G; Pashkevich Yu G; Balaev A D; Bondarenko G V

来源：Journal of Magnetism and Magnetic Materials, 2009, 321(9): 1266-1271.

DOI：10.1016/j.jmmm.2008.11.087

• Perovskite structure
• Doped cobaltite
• Magnetic susceptibility
• Metal-insulator transition

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.

• 出版日期2009-5