Magnetization process in mixed magnetic chains (CH3)2CHNH3Cu(ClxBr1-x)3 by bond over the gapless phase induced randomness

被引：0
|
作者：
Manaka, H
Yamada, I
Mitamura, H
Goto, T
机构：
[1] IMSS, Photon Factory, High Accelerator Res Org, Tsukuba, Ibaraki 3050801, Japan
[2] Chiba Univ, Dept Phys, Fac Sci, Inage Ku, Chiba 2638522, Japan
[3] Univ Tokyo, Inst Solid State Phys, Kashiwa, Chiba 2778581, Japan
来源：
PHYSICA B-CONDENSED MATTER | 2003年 / 329卷
关键词：
bond randomness; gapless state; (CH3)(2)CHNH3Cu(ClxBr1-x)(3); magnetization process;
D O I：
10.1016/S0921-4526(02)02035-5
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Mixed magnetic systems (CH3)(2)CHNH3Cu(ClxBr1-x)(3) over the intermediate phase (0.44<x<0.87) are good candidate compounds for experimental studies on the gapless state induced by bond randomness. We performed measurements of the magnetization process at 1.7 K on these mixed compounds. As a result, a typical spin flop transition, which indicated absence of the energy gap, was detected. From the variation in the spin flop transition field with x, the expected value of spins <S-i(z)> was found to reach its maximum at xsimilar or equal to0.71, the point at which bond randomness is highest. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：969 / 970
页数：2
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