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Spin transport properties in Heisenberg antiferromagnetic spin chains: Spin current induced by twisted boundary magnetic fields
Zhuo, W; Wang, XQ; Wang, YP; Zhuo, W , Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, POB 603, Beijing 100080, Peoples R China
2006
发表期刊PHYSICAL REVIEW B
ISSN1098-0121
卷号73期号:21页码:-
摘要Spin transport properties of the one-dimensional Heisenberg antiferromagnetic spin systems for both S=1/2 and S=1 are studied by applying twisted boundary magnetic field. The spin current displays significantly different behavior of the spin transport properties between S=1/2 and S=1 cases. For the spin-half case, a London equation for the current and the detection of an alternating electric field are proposed for the linear response regime. The correlation functions reveal the spiral nature of spin configuration for both ground state and the spinon excitations. For the spin-one chain otherwise, a kink generated in the ground state for the size is larger than the correlation length, leading to an exponential dependence of spin current with respect to the chains length. The midgap state emerges from the degenerate ground state even for small boundary fields.
部门归属Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100080, Peoples R China; Renmin Univ China, Dept Phys, Beijing 100872, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Chinese Acad Sci, Int Ctr Quantum Struct, Beijing 100080, Peoples R China
关键词Renormalization-group Sigma-model Haldane-gap Dynamics Spintronics State
学科领域Physics
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收录类别SCI
WOS记录号WOS:000238696200024
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被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/5984
专题1978-2010年知识产出
通讯作者Zhuo, W , Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, POB 603, Beijing 100080, Peoples R China
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Zhuo, W,Wang, XQ,Wang, YP,et al. Spin transport properties in Heisenberg antiferromagnetic spin chains: Spin current induced by twisted boundary magnetic fields[J]. PHYSICAL REVIEW B,2006,73(21):-.
APA Zhuo, W,Wang, XQ,Wang, YP,&Zhuo, W , Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, POB 603, Beijing 100080, Peoples R China.(2006).Spin transport properties in Heisenberg antiferromagnetic spin chains: Spin current induced by twisted boundary magnetic fields.PHYSICAL REVIEW B,73(21),-.
MLA Zhuo, W,et al."Spin transport properties in Heisenberg antiferromagnetic spin chains: Spin current induced by twisted boundary magnetic fields".PHYSICAL REVIEW B 73.21(2006):-.
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