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Insulator-to-metal phase transition in Yb-based Kondo insulators
Li, Guang-Bin; Zhang, Guang-Ming; Yu, Lu; Li, GB , Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China
2010
发表期刊EPL
ISSN0295-5075
卷号91期号:5页码:-
摘要The periodic Anderson lattice model for the crystalline electric field (CEF) split 4f quartet states is used to describe the Yb-based Kondo insulators. In the slave-boson mean-field approximation, we derive the hybridized quasiparticle bands, and surprisingly find that decreasing the hybridization difference of the two CEF quartets may induce a continuous insulator-to-metal phase transition. The resulting metallic phase has a hole and an electron Fermi pocket. Such a phase transition may be realized experimentally by applying pressure, reducing the difference in hybridization of the two CEF quartets in real materials. Copyright (C) EPLA, 2010
部门归属[Li, GB; Zhang, GM] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China; [Yu, L] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China; [Yu, L] Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China
关键词Magnetic-field Ybb12
学科领域Physics
资助者NSF-China; MOST, China ; NSF-China; MOST, China ; NSF-China; MOST, China ; NSF-China; MOST, China
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收录类别SCI
资助者NSF-China; MOST, China ; NSF-China; MOST, China ; NSF-China; MOST, China ; NSF-China; MOST, China
WOS记录号WOS:000282123300023
引用统计
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/5052
专题理论物理所1978-2010年知识产出
通讯作者Li, GB , Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China
推荐引用方式
GB/T 7714
Li, Guang-Bin,Zhang, Guang-Ming,Yu, Lu,et al. Insulator-to-metal phase transition in Yb-based Kondo insulators[J]. EPL,2010,91(5):-.
APA Li, Guang-Bin,Zhang, Guang-Ming,Yu, Lu,&Li, GB , Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China.(2010).Insulator-to-metal phase transition in Yb-based Kondo insulators.EPL,91(5),-.
MLA Li, Guang-Bin,et al."Insulator-to-metal phase transition in Yb-based Kondo insulators".EPL 91.5(2010):-.
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