Magnetic torque of λ-(BETS)2FeCl4

被引：42
|
作者：
Sasaki, T [1 ]
Uozaki, H
Endo, S
Toyota, N
机构：
[1] Tohoku Univ, Mat Res Inst, Sendai, Miyagi 9808577, Japan
[2] Japan Sci & Technol Corp, CREST, Kawaguchi 3320012, Japan
[3] Tohoku Univ, Grad Sch Sci, Dept Phys, Sendai, Miyagi 9808578, Japan
来源：
SYNTHETIC METALS | 2001年 / 120卷 / 1-3期
关键词：
magnetic phase transitions; organic conductors based on radical cation and/or anion salt;
D O I：
10.1016/S0379-6779(00)00775-X
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Magnetic torque of lambda-(BETS)(2)FeCl4 is measured up to 15 T and down to 0.4 K. Clear first-order spin flop transition between the antiferromagnetic (AF) and the canted antiferromagnetic (CAF) phases is observed in the magnetic field of about 1.2 T and below 9.5 K. The AF easy axis is found to be in the direction tilted by about 30 degrees from the c-axis to the b*-axis, which is different from the previous reports on the easy axis (the c-axis). At the steplike transition with hysteresis around H = 10 T between CAF and the field induced ferromagnetic (F) (paramagnetic) phases, the direction of the magnetic easy ads changes. The two transitions on the H - T phase diagram are considered on the basis of the coupled two spin system; Fe3+ (S = 5/2) and (BETS)(2) (S = 1/2).
引用
收藏
页码：759 / 760
页数：2
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