Tunnel splitting in biaxial spin models investigated with spin-coherent-state path integrals
文献类型：期刊论文
| 作者 | Chen, ZD ; Liang, JQ ; Pu, FC |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2003 |
| 卷号 | 67期号:10 |
| 关键词 | QUANTUM PHASE INTERFERENCE FERROMAGNETIC PARTICLES MAGNETIZATION SYSTEMS |
| ISSN号 | 1098-0121 |
| 通讯作者 | Chen, ZD (reprint author), Guangzhou Univ, Dept Phys, Guangzhou 510405, Peoples R China. |
| 中文摘要 | Tunnel splitting in biaxial spin models is investigated with a full evaluation of the fluctuation functional integrals of the Euclidean kernel in the framework of spin-coherent-state path integrals which leads to a magnitude of tunnel splitting quantitatively comparable with the numerical results in terms of diagonalization of the Hamilton operator. An additional factor resulted from a global time transformation converting the position-dependent mass to a constant one seems to be equivalent to the semiclassical correction of the Lagrangian proposed by Enz and Schilling. A long standing question whether the spin-coherent-state representation of path integrals can result in an accurate tunnel splitting is therefore resolved. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-23 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/46204]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Chen, ZD,Liang, JQ,Pu, FC. Tunnel splitting in biaxial spin models investigated with spin-coherent-state path integrals[J]. PHYSICAL REVIEW B,2003,67(10). |
| APA | Chen, ZD,Liang, JQ,&Pu, FC.(2003).Tunnel splitting in biaxial spin models investigated with spin-coherent-state path integrals.PHYSICAL REVIEW B,67(10). |
| MLA | Chen, ZD,et al."Tunnel splitting in biaxial spin models investigated with spin-coherent-state path integrals".PHYSICAL REVIEW B 67.10(2003). |
入库方式： OAI收割
来源：物理研究所
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