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Absence of overscreened Kondo effect in a ferromagnetic host
Dai, JH; Wang, YP; Dai, JH , Zhejiang Univ, Zhejiang Inst Modern Phys, Hangzhou 310027, Peoples R China.
2000
发表期刊PHYSICAL REVIEW B
ISSN0163-1829
卷号62期号:2页码:R759-R762
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.
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
关键词Heisenberg Chain Spin Chain Critical-behavior Low-temperature Impurities Systems
学科领域Physics
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收录类别SCI
WOS记录号WOS:000088190500008
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/12951
专题理论物理所SCI论文
通讯作者Dai, JH , Zhejiang Univ, Zhejiang Inst Modern Phys, Hangzhou 310027, Peoples R China.
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Dai, JH,Wang, YP,Dai, JH , Zhejiang Univ, Zhejiang Inst Modern Phys, Hangzhou 310027, Peoples R China.. Absence of overscreened Kondo effect in a ferromagnetic host[J]. PHYSICAL REVIEW B,2000,62(2):R759-R762.
APA Dai, JH,Wang, YP,&Dai, JH , Zhejiang Univ, Zhejiang Inst Modern Phys, Hangzhou 310027, Peoples R China..(2000).Absence of overscreened Kondo effect in a ferromagnetic host.PHYSICAL REVIEW B,62(2),R759-R762.
MLA Dai, JH,et al."Absence of overscreened Kondo effect in a ferromagnetic host".PHYSICAL REVIEW B 62.2(2000):R759-R762.
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