μSR-detected soft mode toward a possible phase transition in a disordered spin-gap system, (CH3)2CHNH3-Cu(ClxBr1-x)3

被引：0
|
作者：
Goto, T. [1 ]
Suzuki, T. [2 ]
Watanabe, I. [2 ]
Kanada, K. [1 ]
Saito, T. [1 ]
Oosawa, A. [1 ]
Manaka, H. [3 ]
机构：
[1] Sophia Univ, Fac Sci & Technol, Chiyoda Ku, Tokyo 1028554, Japan
[2] RIKEN, Adv Meson Sci Lab, Nishina Ctr, Wako, Saitama 3510198, Japan
[3] Kagoshima Univ, Grad Sch Sci & Engn, Kagoshima 8900065, Japan
来源：
PHYSICA B-CONDENSED MATTER | 2009年 / 404卷 / 5-7期
关键词：
Spin-gap system; Bond-disorder; NMR; mu SR; INDUCED MAGNETIC ORDER; HEISENBERG-CHAINS; HALDANE STATE; (CH3)(2)CHNH3CUCL3; LOCALIZATION; RELAXATION; NMR;
D O I：
10.1016/j.physb.2008.11.107
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Measurements of the macroscopic properties have indicated that the bond-disordered spin-gap system (CH3)(2)CHNH3-Cu(ClxBr1-x)(3) is gapless when x is between 0.44 and 0.87. Using muon spin relaxation to investigate the microscopic properties of a sample with x = 0.35, we observed a dynamical spin fluctuation, whose characteristic frequency decreased with decreasing temperature, indicating a magnetic ground state. (C) 2008 Published by Elsevier B.V.
引用
收藏
页码：594 / 596
页数：3
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