Quantum-classical phase transition of escape rates in biaxial spin particles
文献类型：期刊论文
| 作者 | Zhang, YB ; Liang, JQ ; Muller-Kirsten, HJW ; Kou, SP ; Wang, XB ; Pu, FC |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 1999 |
| 卷号 | 60期号:18页码:12886 |
| 关键词 | FERROMAGNETIC PARTICLES SYSTEMS MAGNETIZATION STATES DECAY FIELD |
| ISSN号 | 1098-0121 |
| 通讯作者 | Zhang, YB (reprint author), Shanxi Agr, Dept Phys, Taiyuan 030006, Shanxi, Peoples R China. |
| 中文摘要 | By using a stereographic projection of the unit sphere of magnetization vector onto a complex plane for the equations of motion, the effect of an external magnetic field for integrability of the system is discussed. The properties of the Jest solutions and the scattering data are then investigated through introducing transformations other than the Riemann surface in order to avoid double-valued functions of the usual spectral parameter. The exact multisoliton solutions are investigated by means of the Binet-Cauchy formula. The results showed that under the action of an external magnetic field nonlinear magnetization depends essentially on two parameters: its center moves with a constant velocity, while its shape changes with another constant velocity; its amplitude and width vary periodically with time, while its shape is also dependent on time and is unsymmetric with respect to its center. The orientation of the nonlinear magnetization in the plane orthogonal to the anisotropy axis changes with an external magnetic field. The total magnetic momentum and the integral of the motion coincident with its z component depend on time. The mean number of spins derivated from the ground state in a localized magnetic excitations is dependent on time. The asymptotic behavior of multisoliton solutions, the total displacement of center, and the phase shift of the jth peak an also analyzed. [S0163-1829(99)07121-0]. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/51771]  |
| 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 | Zhang, YB,Liang, JQ,Muller-Kirsten, HJW,et al. Quantum-classical phase transition of escape rates in biaxial spin particles[J]. PHYSICAL REVIEW B,1999,60(18):12886. |
| APA | Zhang, YB,Liang, JQ,Muller-Kirsten, HJW,Kou, SP,Wang, XB,&Pu, FC.(1999).Quantum-classical phase transition of escape rates in biaxial spin particles.PHYSICAL REVIEW B,60(18),12886. |
| MLA | Zhang, YB,et al."Quantum-classical phase transition of escape rates in biaxial spin particles".PHYSICAL REVIEW B 60.18(1999):12886. |
入库方式： OAI收割
来源：物理研究所
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