Field-induced three-dimensional magnetic ordering in the spin-gap system TlCuCl3

被引：205

作者：

Oosawa, A ^{[1
]}

Ishii, M ^{[1
]}

Tanaka, H ^{[1
]}

机构：

[1] Tokyo Inst Technol, Dept Phys, Meguro Ku, Tokyo 1528551, Japan

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1999年 / 11卷 / 01期

关键词：

D O I：

10.1088/0953-8984/11/1/021

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The temperature and field variations of the magnetization have been measured for TlCuCl3 which has a singlet ground state with an excitation gap. It is found that TlCuCl3 undergoes three-dimensional ordering in magnetic fields. The phase boundaries between the paramagnetic and ordered states are determined for H parallel to b and H perpendicular to (1, 0, (2) over bar). The phase boundaries for these field directions coincide when normalized by the g-factor. The excitation gap at zero temperature is re-evaluated as Delta/k(B) = 7.54(5) K.

引用

页码：265 / 271

页数：7

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