Spin structure factors and valence-bond-solid states of the trimerized heisenberg chains in a magnetic field | |
Gong, Shou-Shu; Gu, Bo; Su, Gang | |
刊名 | Physics letters a |
2008-03-24 | |
卷号 | 372期号:13页码:2322-2325 |
ISSN号 | 0375-9601 |
DOI | 10.1016/j.physleta.2007.11.043 |
通讯作者 | Su, gang(gsu@gucas.ac.cn) |
英文摘要 | By means of the density matrix renormalization group (dmrg) method, the static spin structure factors and the magnetization plateaus of the trimerized heisenberg ferromagnet-ferromagnet-antiferromagnet and antiferromagnet-antiferromagnet-ferromagnet spin chains in the presence of a magnetic field are elaborately studied. it is found that in the plateau states, the static structure factor with three peaks does not vary with the external magnetic field as well as the exchange couplings; the spin correlation function behaves as a perfect sequence and has a simple relation with the magnetization per site. an approximate wave function for the plateau states is proposed, and a picture based on the valence-bond-solid states is presented in order to understand the origin and the total number of the magnetization plateaus, which are shown to be in agreement with the dmrg results. (c) 2007 elsevier b.v. all rights reserved. |
WOS关键词 | QUANTUM RENORMALIZATION-GROUPS ; S=1/2 ; PLATEAUS |
WOS研究方向 | Physics |
WOS类目 | Physics, Multidisciplinary |
语种 | 英语 |
出版者 | ELSEVIER SCIENCE BV |
WOS记录号 | WOS:000254556800034 |
内容类型 | 期刊论文 |
URI标识 | http://www.corc.org.cn/handle/1471x/2385259 |
专题 | 中国科学院大学 |
通讯作者 | Su, Gang |
作者单位 | Chinese Acad Sci, Grad Univ, Coll Phys Sci, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Gong, Shou-Shu,Gu, Bo,Su, Gang. Spin structure factors and valence-bond-solid states of the trimerized heisenberg chains in a magnetic field[J]. Physics letters a,2008,372(13):2322-2325. |
APA | Gong, Shou-Shu,Gu, Bo,&Su, Gang.(2008).Spin structure factors and valence-bond-solid states of the trimerized heisenberg chains in a magnetic field.Physics letters a,372(13),2322-2325. |
MLA | Gong, Shou-Shu,et al."Spin structure factors and valence-bond-solid states of the trimerized heisenberg chains in a magnetic field".Physics letters a 372.13(2008):2322-2325. |
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