BaCu2Si2O7:: A quasi-one-dimensional S=1/2 antiferromagnetic chain system

被引：91

作者：

Tsukada, I

Sasago, Y

Uchinokura, K

Zheludev, A

Maslov, S

Shirane, G

Kakurai, K

Ressouche, E

机构：

[1] Univ Tokyo, Dept Appl Phys, Bunkyo Ku, Tokyo 1138656, Japan

[2] Brookhaven Natl Lab, Upton, NY 11973 USA

[3] Univ Tokyo, Neutron Scattering Lab, Inst Solid State Phys, Tokai, Ibaraki 3191106, Japan

[4] CEN, MDN, SPSM, DRFMC, F-38054 Grenoble, France

来源：

PHYSICAL REVIEW B | 1999年 / 60卷 / 09期

关键词：

D O I：

10.1103/PhysRevB.60.6601

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The antiferromagnetic (AF) compound BaCu2Si2O7 is studied by magnetic susceptibility and neutron-scattering techniques. The observed behavior is dominated by the presence of loosely coupled S=1/2 chains with the intrachain AF exchange constant J(parallel to)approximate to 24.1 meV. Long-range Neel ordering is observed below T-N=9.2 K. The results are discussed within the framework of the mean-field RPA model for weakly interacting quantum spin chains. [S0163-1829(99)03433-5].

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页码：6601 / 6607

页数：7

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