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题名: Absence of overscreened Kondo effect in a ferromagnetic host
作者: Dai, JH ;  Wang, YP
刊名: PHYSICAL REVIEW B
出版日期: 2000
卷号: 62, 期号:2, 页码:R759-R762
关键词: HEISENBERG CHAIN ;  SPIN CHAIN ;  CRITICAL-BEHAVIOR ;  LOW-TEMPERATURE ;  IMPURITIES ;  SYSTEMS
学科分类: Physics
通讯作者: Dai, JH , Zhejiang Univ, Zhejiang Inst Modern Phys, Hangzhou 310027, Peoples R China.
部门归属: Zhejiang Univ, Zhejiang Inst Modern Phys, Hangzhou 310027, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China
英文摘要: We study the low-temperature behavior of a boundary magnetic impurity S' = 1/2 in an open ferromagnetic Takhatajian-Babujian spin-S chain. For antiferromagnetic Kondo coupling, it is shown via the Bethe ansatz solution that the impurity spin is always locked into the critical behavior of the bulk. At low temperatures, a local composite of spin-(S-1/2) forms near the impurity site and its contribution to specific heat is of simple power law T-1/2. The absence of the overscreened Kondo effect is due to the large correlation length of host spins which is divergent near the quantum critical point.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000088190500008
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/12951
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:
Dai, JH,Wang, YP. Absence of overscreened Kondo effect in a ferromagnetic host[J]. PHYSICAL REVIEW B,2000,62(2):R759-R762.
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