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题名: Impurity energy level in the Haldane gap
作者: Wang, W ;  Qin, SJ ;  Lu, ZY ;  Yu, L ;  Su, ZB
刊名: PHYSICAL REVIEW B
出版日期: 1996
卷号: 53, 期号:1, 页码:40-43
关键词: QUANTUM RENORMALIZATION-GROUPS ;  SPIN CHAINS ;  HEISENBERG-ANTIFERROMAGNET ;  FIELD
学科分类: Physics
通讯作者: Wang, W , BEIJING UNIV,DEPT PHYS,BEIJING 100871,PEOPLES R CHINA.
部门归属: ACAD SINICA,INST THEORET PHYS,BEIJING 100080,PEOPLES R CHINA; SCH ADV INT STUDIES,I-34013 TRIESTE,ITALY; INT CTR THEORET PHYS,I-34100 TRIESTE,ITALY
英文摘要: An impurity bond J' in a periodic one-dimensional antiferromagnetic spin-1 chain with exchange J is considered. Using the numerical density matrix renormalization-group method, we find an impurity energy level in the Haldane gap, corresponding to a bound state near the impurity bond. When J'J. The impurity level appears only when the deviation dev=(J'-J)/J' is greater than B-c, which is close to 0.3 in our calculation.
收录类别: SCI
原文出处: 查看原文
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/12673
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Wang, W,Qin, SJ,Lu, ZY,et al. Impurity energy level in the Haldane gap[J]. PHYSICAL REVIEW B,1996,53(1):40-43.
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