Microwave absorption materials -: IV Preparation of the mixed layer structure phases, RexTa1-xS2 and OsxTa1-xS2, and some electrical and magnetic properties

被引:5
作者
Hayashi, K [1 ]
Serikawa, D [1 ]
Maeda, N [1 ]
Okamoto, A [1 ]
Ikeuchi, T [1 ]
机构
[1] Okayama Univ Sci, Lab Solid State Chem, Okayama 700, Japan
关键词
electrical conductivities; functional applications; magnetic properties; X-ray method;
D O I
10.1016/S0955-2219(00)00231-4
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The binary systems ReS2-TaS2 and OsS2-TaS2 are studied. Mixed layer structure (MLS) phases are found in RexTa1-xS2 with a composition range of 0.25 less than or equal to x less than or equal to 0.5, as well as in the OsxTa1-xS2 with a composition range of 0.26 less than or equal to x less than or equal to 0.33. The MLSs of both phases are constructed by a random and mixed stacking of the 2Hb-layers and 3R-layers. The magnetic susceptibilities of samples from both phases show a weak Pauli-paramagnetism, The paramagnetic moment and the electrical conductivity of both phases decrease as the composition x increases. The behaviour of the paramagnetic moment and the electrical conductivity of those phases offer us a good example of the number of conduction electrons and their effect. (C) 2000 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:2735 / 2742
页数:8
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