Exact results of a mixed spin-1/2 and spin-1 Ising chain with both longitude and transverse single-ion anisotropies
文献类型：期刊论文
| 作者 | H. N. Wu ; G. Z. Wei ; G. Y. Yi |
| 刊名 | Physics Letters A
 |
| 出版日期 | 2008 |
| 卷号 | 372期号:43页码:6531-6535 |
| 关键词 | Mixed spin Ising chain Single-ion anisotropy Exact result low-temperature properties ferrimagnetic chain quantum field s=1/2 |
| ISSN号 | 0375-9601 |
| 中文摘要 | The mixed spin-1/2 and spin-1 Ising chain with both longitude and transverse single-ion anisotropies D-z and D-x is solved exactly by means of a mapping to the spin-1/2 Ising chain with the alternating transverse fields and the Jordan-Wigner transformation. The analytical expressions of the quasi-particles' spectra Lambda(k), the minimal energy gap Delta(0) for exciting a fermion quasi-particle, the minimal energy gap Delta(h) for exciting a hole, and the ground state energy are obtained. The phase diagram of the ground state is also given. The results show that when D-z >= 0 for any finite value of D-x there is no quantum critical point and the ground state is always in a spin ordered phase disregard of the boundary condition in the present system. (C) 2008 Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/33203]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | H. N. Wu,G. Z. Wei,G. Y. Yi. Exact results of a mixed spin-1/2 and spin-1 Ising chain with both longitude and transverse single-ion anisotropies[J]. Physics Letters A,2008,372(43):6531-6535. |
| APA | H. N. Wu,G. Z. Wei,&G. Y. Yi.(2008).Exact results of a mixed spin-1/2 and spin-1 Ising chain with both longitude and transverse single-ion anisotropies.Physics Letters A,372(43),6531-6535. |
| MLA | H. N. Wu,et al."Exact results of a mixed spin-1/2 and spin-1 Ising chain with both longitude and transverse single-ion anisotropies".Physics Letters A 372.43(2008):6531-6535. |
入库方式： OAI收割
来源：金属研究所
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