LOW-TEMPERATURE SPECIFIC-HEAT MEASUREMENTS ON THE NDCOXFE1-XO3 SYSTEM

被引：8
|
作者：
BARTOLOME, F
KUZMIN, MD
BARTOLOME, J
BLASCO, J
GARCIA, J
机构：
[1] Instituto de Ciencia de Materiales de Aragón, CSIC, Universidad de Zaragoza
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1995年 / 140卷 / pt 3期
关键词：
641.1 Thermodynamics - 701.2 Magnetism: Basic Concepts and Phenomena - 708.4 Magnetic Materials - 804.2 Inorganic Compounds - 931.2 Physical Properties of Gases; Liquids and Solids - 933.1 Crystalline Solids and Crystallography;
D O I：
10.1016/0304-8853(94)01005-6
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Low-temperature specific heat measurements have been carried out on the NdCoxFe1-xO3 perovskite system (x = 0, 0.25, 0.5, 0.9, 1). Magnetic ordering of Nd3+ ions have been observed in NdCoO3 (at 1.20 K) and NdFeO3 (at 1.05 K). The studied dilutions, unlike the pure Fe or Co compounds, do not show a magnetic order of the Nd ions due to the stronger molecular field caused by decompensation of the internal field upon the introduction of the (Co3+) magnetic Vacancies in the antiferromagnetically ordered Fe subsystem. The specific heat curve of the system at x = 0.9 resembles spin-glass behaviour.
引用
收藏
页码：2159 / 2160
页数：2
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