Novel Field Induced Quantum Phase Transition of the Kagome Lattice Antiferromagnet

被引：0
|
作者：
Sakai, Toru [1 ,2 ]
Nakano, Hiroki [2 ]
机构：
[1] SPring 8, Japan Atom Energy Agcy, Sayo, Hyogo 6795148, Japan
[2] Univ Hyogo, Grad Sch Mat Sci, Kamigori 6781297, Japan
来源：
27TH INTERNATIONAL CONFERENCE ON LOW TEMPERATURE PHYSICS (LT27), PTS 1-5 | 2014年 / 568卷
关键词：
HEISENBERG-ANTIFERROMAGNET; EXACT SPECTRA; ORDER; EXCITATIONS;
D O I：
10.1088/1742-6596/568/4/042025
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The S = 1/2 kagomelattice antiferromagnet is investigated by the numerical diagonalization. We successfully obtained the ground-state full magnetization curve for the 42-spin cluster. Based on the finite-size scaling alnalysis including this new result, we consider the quatnum critical magnetization behavior around the 1/3 of the saturation magnetization. As a result, some unconventional features of the 1/3 magnetization ramp, which was proposed by our previous work, are clarified.
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页数：6
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