Crossover from quantum tunneling to classical hopping of barrier transition in nano-magnets
文献类型：期刊论文
| 作者 | Nie, YH ; Liang, Q ; Yan, QW |
| 刊名 | PHYSICS LETTERS A
 |
| 出版日期 | 2002 |
| 卷号 | 299期号:5-6页码:586 |
| 关键词 | BIAXIAL SPIN SYSTEM ESCAPE-RATE 2ND-ORDER TRANSITIONS PHASE-TRANSITIONS FIRST-ORDER FERROMAGNETIC PARTICLES FIELD MAGNETIZATION REGIMES MOLECULES |
| ISSN号 | 0375-9601 |
| 通讯作者 | Nie, YH: Shanxi Univ, Inst Theoret Phys, Taiyuan 030006, Shanxi, Peoples R China. |
| 中文摘要 | Crossover from quantum tunneling to thermal hopping of barrier transition in biaxial nano-magnets with external magnetic field is studied as a phase transition process. We obtain the phase diagram in terms of the nonlinear perturbation expansion of small oscillation around the saddle point of the first-order Euclidean (imaginary-time) differential equations for polar and azimuthal angles theta and theta of the nano-magnet without approximation and so that the phase diagram can be extended to the whole range of anisotropy constants of the magnet as well as the magnitude of the external magnetic field. New phase diagrams are observed and are compared with the result in the literature. (C) 2002 Elsevier Science B.V. All rights reserved. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/35318]  |
| 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 | Nie, YH,Liang, Q,Yan, QW. Crossover from quantum tunneling to classical hopping of barrier transition in nano-magnets[J]. PHYSICS LETTERS A,2002,299(5-6):586. |
| APA | Nie, YH,Liang, Q,&Yan, QW.(2002).Crossover from quantum tunneling to classical hopping of barrier transition in nano-magnets.PHYSICS LETTERS A,299(5-6),586. |
| MLA | Nie, YH,et al."Crossover from quantum tunneling to classical hopping of barrier transition in nano-magnets".PHYSICS LETTERS A 299.5-6(2002):586. |
入库方式： OAI收割
来源：物理研究所
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