Topological nature of magnetization plateaus in periodically modulated quantum spin chains

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	Topological nature of magnetization plateaus in periodically modulated quantum spin chains
	Hu, HP ; Cheng, C ; Xu, ZH ; Luo, HG ; Chen, S
刊名	PHYSICAL REVIEW B
	2014
卷号	90 期号:3
ISSN号	1098-0121
通讯作者	Chen, S (reprint author), Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China.
中文摘要	We unveil nontrivial topological properties of zero-temperature magnetization plateau states in periodically modulated quantum spin chains under a uniform magnetic field. As positions of plateaus are uniquely determined by the modulation period of exchange couplings, we find that the topologically nontrivial plateau state can be characterized by a nonzero integer Chern number and has nontrivial edge excitations. Our study clarifies the topological origin of the well-known phenomena of quantized magnetization plateaus in one-dimensional quantum spin systems and relates the plateau state to the correlated topological insulator.
资助信息	National Program for Basic Research of MOST (973 grant); NSFC [11374354, 11174360, 11174115, 10974234, 11325417]; PCSIRT [IRT1251]
语种	英语
公开日期	2015-04-14
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/59522]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Hu, HP,Cheng, C,Xu, ZH,et al. Topological nature of magnetization plateaus in periodically modulated quantum spin chains[J]. PHYSICAL REVIEW B,2014,90(3).
APA	Hu, HP,Cheng, C,Xu, ZH,Luo, HG,&Chen, S.(2014).Topological nature of magnetization plateaus in periodically modulated quantum spin chains.PHYSICAL REVIEW B,90(3).
MLA	Hu, HP,et al."Topological nature of magnetization plateaus in periodically modulated quantum spin chains".PHYSICAL REVIEW B 90.3(2014).