MAGNETIC-SUSCEPTIBILITY AND ELECTRON-PARAMAGNETIC RESONANCE-SPECTRUM OF TETRAVALENT PRASEODYMIUM IONS IN BAPRO3

被引:30
作者
HINATSU, Y
机构
[1] Department of Chemistry, Japan Atomic Energy Research Institute, Tokai-mura, Ibaraki
关键词
D O I
10.1006/jssc.1993.1046
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Tetravalent praseodymium perovskite, BaPrO3, was prepared, and its magnetic susceptibility was measured in the temperature range between 4.2 K and room temperature. Magnetic ordering was found at 11.5 K. A very sharp decline of the susceptibility was observed when the temperature was increased through this transition temperature. Magnetic susceptibilities of BaPr1-yCeyO3 solid solutions were also measured. Electron paramagnetic resonance (EPR) spectra could be measured only at 4.2 K for the sample of praseodymium ion doped in diamagnetic BaCeO3. The spectra were complicated. The results of magnetic measurements show that the praseodymium ion is in the tetravalent state. © 1993 Academic Press. All rights reserved.
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页码:362 / 367
页数:6
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