Characterization of Phase Transition in Heisenberg Fluids from Density Functional Theory
文献类型：期刊论文
| 作者 | Li Liang-Sheng; Li Li ; Chen Xiao-Song; Li, LS , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100190, Peoples R China
|
| 刊名 | COMMUNICATIONS IN THEORETICAL PHYSICS
 |
| 出版日期 | 2009 |
| 卷号 | 51期号:2页码:287-292 |
| 关键词 | Order-disorder Transition Liquid-vapor Interface Monte-carlo-simulation Neutral Hard-spheres Dipolar Fluids Model Instability Equation Diagram |
| ISSN号 | 0253-6102 |
| 英文摘要 | The phase transition of Heisenberg fluid has been investigated with the density functional theory in mean-field approximation (MF). The matrix of the second derivatives of the grand canonical potential Omega with respect to the particle density fluctuations and the magnetization fluctuations has been investigated and diagonalized. The smallest eigenvalue being 0 signalizes the phase instability and the related eigenvector characterizes this phase transition. We find a Curie line where the order parameter is pure magnetization and a spinodal where the order parameter is a mixture of particle density and magnetization. Along the spinodal, the character of phase in stability changes continuously from predominant condensation to predominant ferromagnetic phase transition with the decrease of total density. The spinodal meets the Curie line at the critical end point with the reduced density rho* = rho sigma(3) = 0.224 and the reduced temperature T* = kT/epsilon = 1.87 (sigma is the diameter of Heisenberg hard sphere and epsilon is the coupling constant). |
| 学科主题 | Physics |
| WOS记录号 | WOS:000263891900020 |
| 公开日期 | 2012-08-02 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/5396]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Li, LS , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li Liang-Sheng,Li Li,Chen Xiao-Song,et al. Characterization of Phase Transition in Heisenberg Fluids from Density Functional Theory[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2009,51(2):287-292. |
| APA | Li Liang-Sheng,Li Li,Chen Xiao-Song,&Li, LS , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100190, Peoples R China.(2009).Characterization of Phase Transition in Heisenberg Fluids from Density Functional Theory.COMMUNICATIONS IN THEORETICAL PHYSICS,51(2),287-292. |
| MLA | Li Liang-Sheng,et al."Characterization of Phase Transition in Heisenberg Fluids from Density Functional Theory".COMMUNICATIONS IN THEORETICAL PHYSICS 51.2(2009):287-292. |
入库方式： OAI收割
来源：理论物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。