1/3 magnetization plateau in SrCu2(BO3)2 -: Stripe order of excited triplets

被引:199
作者
Onizuka, K
Kageyama, H
Narumi, Y
Kindo, K
Ueda, Y
Goto, T
机构
[1] Univ Tokyo, Inst Solid State Phys, Minato Ku, Tokyo 1068666, Japan
[2] Japan Sci & Technol Corp, CREST, Toyonaka, Osaka 5608531, Japan
[3] Osaka Univ, Res Ctr Mat Sci Extreme Condit, Toyonaka, Osaka 5608531, Japan
关键词
SrCu2(BO3)(2); Shastry-Sutherland model; quantized magnetization plateaux; stripe; spin gap;
D O I
10.1143/JPSJ.69.1016
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
High-field magnetization measurements up to 57 T have been performed at 0.08 K in a single crystal of a two-dimensional spin-gap material SrCu2(BO3)(2). We successfully observed the predicted plateau at 1/3 of the total magnetization around 50 T, in which the magnetic super structure is characterized by a novel stripe order of triplets. The 1/3 plateau is much wider than the previously observed 1/4 and 1/8 plateaux.
引用
收藏
页码:1016 / 1018
页数:3
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