MYb2S4;
spinel;
magnetic susceptibility;
frustration;
D O I:
10.1016/S0921-4526(02)02332-3
中图分类号:
O469 [凝聚态物理学];
学科分类号:
070205 ;
摘要:
The spinel-type compounds MYb2S4 (M = Mg, Mn) have been prepared and magnetic susceptibility measurements have been carried out. Two types of sample for MnYb2S4 were obtained. The stable phase has a normal-spinel structure and the newly found metastable phase has a modified spinel structure which is not the inverse spinel. Susceptibility data show clearly the difference between both samples of MnYb2S4, which reflects the difference of the crystal field on Yb3+ ions. Moreover, the magnitude of the FC susceptibility data for each type of MnYb2S4 is slightly larger than that of ZFC below about 50 K, while such difference is not observed for MgYb2S4. (C) 2003 Elsevier Science B.V. All rights reserved.
机构:
Tohoku Univ, Inst Mat Res, High Field Lab Superconduct Mat, Sendai, Miyagi 9808577, JapanTohoku Univ, Inst Mat Res, High Field Lab Superconduct Mat, Sendai, Miyagi 9808577, Japan
Okada, Hironari
Koyama, Keiichi
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机构:
Tohoku Univ, Inst Mat Res, High Field Lab Superconduct Mat, Sendai, Miyagi 9808577, JapanTohoku Univ, Inst Mat Res, High Field Lab Superconduct Mat, Sendai, Miyagi 9808577, Japan
Koyama, Keiichi
Nakatake, Masashi
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机构:
Hiroshima Univ, Hiroshima Synchrotron Radiat Ctr, Hiroshima 7398526, JapanTohoku Univ, Inst Mat Res, High Field Lab Superconduct Mat, Sendai, Miyagi 9808577, Japan
Nakatake, Masashi
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机构:
Shimada, Kenya
Namatame, Hirofumi
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机构:
Hiroshima Univ, Hiroshima Synchrotron Radiat Ctr, Hiroshima 7398526, JapanTohoku Univ, Inst Mat Res, High Field Lab Superconduct Mat, Sendai, Miyagi 9808577, Japan
Namatame, Hirofumi
Taniguchi, Masaki
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机构:
Hiroshima Univ, Hiroshima Synchrotron Radiat Ctr, Hiroshima 7398526, JapanTohoku Univ, Inst Mat Res, High Field Lab Superconduct Mat, Sendai, Miyagi 9808577, Japan
Taniguchi, Masaki
Watanabe, Kazuo
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机构:
Tohoku Univ, Inst Mat Res, High Field Lab Superconduct Mat, Sendai, Miyagi 9808577, JapanTohoku Univ, Inst Mat Res, High Field Lab Superconduct Mat, Sendai, Miyagi 9808577, Japan