EDGE STATES IN OPEN ANTIFERROMAGNETIC HEISENBERG-CHAINS
文献类型：期刊论文
| 作者 | SU, ZB ; QIN, SJ; NG, TK; QIN, SJ , ACAD SINICA,INST THEORET PHYS,POB 2735,BEIJING 100080,PEOPLES R CHINA.
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| 刊名 | PHYSICAL REVIEW B
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| 出版日期 | 1995 |
| 卷号 | 52期号:17页码:12844-12848 |
| 关键词 | Quantum Hall States Mean-field Theory Spin Chains Renormalization-groups Matrix Formulation Excitations |
| ISSN号 | 0163-1829 |
| 英文摘要 | We report our results in investigating edge effects of open antiferromagnetic Heisenberg spin chains with spin magnitudes S = 1/2,1,3/2,2 using the density-matrix renormalization-group method initiated by White. For integer spin chains, we find that edge states with spin magnitude S-edge=S/2 exist, in agreement with the valence-bond-solid model picture. For half-integer spin chains, we find that no edge states exist for the S=1/2 spin chain, but an edge state exists in the S=3/2 spin chain with a S-edge=1/2, in agreement with a previous conjecture by Ng. The properties of the edge state in the S=3/2 chain is studied in detail. Strong finite-size effects associated with spin dimerization in half-integer spin chains are also discussed. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| 公开日期 | 2012-08-29 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/12691]  |
| 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 | QIN, SJ , ACAD SINICA,INST THEORET PHYS,POB 2735,BEIJING 100080,PEOPLES R CHINA. |
| 推荐引用方式 GB/T 7714 | SU, ZB,QIN, SJ,NG, TK,et al. EDGE STATES IN OPEN ANTIFERROMAGNETIC HEISENBERG-CHAINS[J]. PHYSICAL REVIEW B,1995,52(17):12844-12848. |
| APA | SU, ZB,QIN, SJ,NG, TK,&QIN, SJ , ACAD SINICA,INST THEORET PHYS,POB 2735,BEIJING 100080,PEOPLES R CHINA..(1995).EDGE STATES IN OPEN ANTIFERROMAGNETIC HEISENBERG-CHAINS.PHYSICAL REVIEW B,52(17),12844-12848. |
| MLA | SU, ZB,et al."EDGE STATES IN OPEN ANTIFERROMAGNETIC HEISENBERG-CHAINS".PHYSICAL REVIEW B 52.17(1995):12844-12848. |
入库方式： OAI收割
来源：理论物理研究所
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