Kondo singlet state coexisting with antiferromagnetic long-range order: A possible ground state for Kondo insulators
文献类型：期刊论文
| 作者 | Zhang, GM; Yu, L ; Zhang, GM , Tsing Hua Univ, Ctr Adv Study, Beijing 100084, Peoples R China.
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| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2000 |
| 卷号 | 62期号:1页码:76-79 |
| 关键词 | Periodic Anderson Model Lattice Model Phase-diagram Dimensions |
| ISSN号 | 0163-1829 |
| 英文摘要 | The ground-state phase diagram of a half-filled anisotropic Kondo lattice model is calculated within a mean-field theory. For small transverse exchange coupling J(perpendicular to) < J(perpendicular to c1), the ground state shows an antiferromagnetic long-range order with finite staggered magnetizations of both localized spins and conduction electrons. When J(perpendicular to) > J(perpendicular to c2), the long-range order is destroyed and the system is in a disordered Kondo singlet state with a hybridization gap. Both ground states can describe the low-temperature phases of Kondo insulating compounds. Between these two distinct phases, there may be a coexistent regime as a result of the balance between local Kondo screening and magnetic interactions. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000088037000020 |
| 公开日期 | 2012-08-29 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/12946]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Zhang, GM , Tsing Hua Univ, Ctr Adv Study, Beijing 100084, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Zhang, GM,Yu, L,Zhang, GM , Tsing Hua Univ, Ctr Adv Study, Beijing 100084, Peoples R China.. Kondo singlet state coexisting with antiferromagnetic long-range order: A possible ground state for Kondo insulators[J]. PHYSICAL REVIEW B,2000,62(1):76-79. |
| APA | Zhang, GM,Yu, L,&Zhang, GM , Tsing Hua Univ, Ctr Adv Study, Beijing 100084, Peoples R China..(2000).Kondo singlet state coexisting with antiferromagnetic long-range order: A possible ground state for Kondo insulators.PHYSICAL REVIEW B,62(1),76-79. |
| MLA | Zhang, GM,et al."Kondo singlet state coexisting with antiferromagnetic long-range order: A possible ground state for Kondo insulators".PHYSICAL REVIEW B 62.1(2000):76-79. |
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来源：理论物理研究所
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