| 关于两个量子统计模型中铁磁态平均场理论的讨论 |
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| 引用本文： | 贺丽. 关于两个量子统计模型中铁磁态平均场理论的讨论[J]. 大学物理, 2011, 30(8): 5-8 |
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| 作者姓名： | 贺丽 |
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| 作者单位： | 江苏科技大学张家港校区物理教研室,江苏张家港,215600 |
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| 摘 要： | 利用平均场理论讨论了零温下具有长程库仑势的电子气体和短程相互作用的费米原子气体的铁磁相变问题,比较了两个模型中铁磁转变的不同性质.
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| 关 键 词： | 平均场理论 铁磁相变 Hartree-Fock近似 Stoner判据 |
Discussion about ferromagnetic mean-field theory in two quantum models |
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| HE Li. Discussion about ferromagnetic mean-field theory in two quantum models[J]. College Physics, 2011, 30(8): 5-8 |
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| Authors: | HE Li |
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| Affiliation: | HE Li(Physics Teaching and Research Department,Zhangjiagang Campus,Jiangsu University of Science and Technology,Zhangjiagang Jiangsu 215600,China) |
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| Abstract: | The ground state phase transition from the paramagnetic state to the ferromagnetic state is studied via the mean-field approach both in electron gas with long range Coulomb interaction and atom gas with short range interaction.The properties of phase transition are obtained and the differences between the two models are compared. |
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| Keywords: | mean-filed theory ferromagnetic phase transition Hartree-Fock approximation Stoner criterion |
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