Bose-glass state in one-dimensional random antiferromagnets

被引：12

作者：

Manaka, Hirotaka ^{[1
]}

Katori, Hiroko Aruga ^{[2
,3
]}

Kolomiets, Oleksandr Viktorovych ^{[4
]}

Goto, Tuneaki ^{[4
]}

机构：

[1] Kagoshima Univ, Grad Sch Sci & Engn, Kagoshima 8900065, Japan

[2] RIKEN, Wako, Saitama 3510198, Japan

[3] Charles Univ Prague, Dept Elect Struct, Prague 12116, Czech Republic

[4] Univ Tokyo, Inst Solid State Phys, Kashiwa, Chiba 2778581, Japan

来源：

PHYSICAL REVIEW B | 2009年 / 79卷 / 09期

关键词：

antiferromagnetic materials; boson systems; localised states; magnetic susceptibility; magnetic transitions; magnetisation; organic compounds; specific heat; spin dynamics; spin glasses; ALTERNATING HEISENBERG CHAIN; EINSTEIN CONDENSATION; MAGNETIC-FIELD; HALIDE SALTS; LOCALIZATION; TRANSITION; PHASE; (CH3)(2)CHNH3CUCL3; SUPERFLUID; INSULATOR;

D O I：

10.1103/PhysRevB.79.092401

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

One-dimensional random antiferromagnets (CH3)(2)CHNH3Cu(ClxBr1-x)(3) [abbreviated as IPA-Cu(ClxBr1-x)(3)] show three magnetic phases: Cl rich, intermediate, and Br rich. In this study, to confirm the presence of a gapped or gapless state in addition to a Bose-glass (BG) state of spin triplets at two magnetic phase boundaries, magnetic susceptibility, specific heat, and magnetization were measured. Contrary to our proposed model, the results suggest a gapless state and a BG state at the Br-rich phase boundary, and a spin-gap state at the Cl-rich phase boundary. From the viewpoints of the universality class, the BG state may be interpreted as a result of Anderson localization. Therefore, IPA-Cu(ClxBr1-x)(3) are intriguing compounds for studying the BG state because of good one dimensionality.

引用

页数：4

共 38 条

[1] BOSE CONDENSATION IN QUASI-ONE-DIMENSIONAL ANTIFERROMAGNETS IN STRONG FIELDS [J].