Multi-step magnetization of the Ising model on a Shastry-Sutherland lattice: a Monte Carlo simulation

被引：26

作者：

Huang, W. C. ^{[1
]}

Huo, L. ^{[1
]}

Tian, G. ^{[1
]}

Qian, H. R. ^{[1
]}

Gao, X. S. ^{[1
]}

Qin, M. H. ^{[1
]}

Liu, J-M ^{[2
,3
]}

机构：

[1] S China Normal Univ, S China Acad Adv Photon Engn, Inst Adv Mat, Guangzhou 510006, Guangdong, Peoples R China

[2] Nanjing Univ, Solid State Microstruct Lab, Nanjing 210093, Jiangsu, Peoples R China

[3] Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110016, Peoples R China

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2012年 / 24卷 / 38期

基金：

中国博士后科学基金;

关键词：

GROUND-STATE; CA3CO2O6;

D O I：

10.1088/0953-8984/24/38/386003

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The magnetization behaviors and spin configurations of the classical Ising model on a Shastry-Sutherland lattice are investigated using Monte Carlo simulations, in order to understand the fascinating magnetization plateaus observed in TmB4 and other rare-earth tetraborides. The simulations reproduce the 1/2 magnetization plateau by taking into account the dipole-dipole interaction. In addition, a narrow 2/3 magnetization step at low temperature is predicted in our simulation. The multi-step magnetization can be understood as the consequence of the competitions among the spin-exchange interaction, the dipole-dipole interaction, and the static magnetic energy.

引用

页数：6

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