| 重费米子系统态密度 |
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| 引用本文： | 周青春.重费米子系统态密度[J].中国石油大学学报(自然科学版),1990(2). |
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| 作者姓名： | 周青春 |
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| 作者单位： | 石油大学数理系 |
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| 摘 要： | 本文将Slave-boson平均场方法应用于Kondo晶格模型,计算了低温下重费米子系统的电子态密度。结果表明:在极低温度下费米面存在赝能隙;在较高温度下此赝能隙将为态密度峰所取代。
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| 关 键 词： | 重费米子系统 哈密顿量 格林函数 态密度 赝能隙 |
THE STATE DENSITY OF THE HEAVY FERMION SYSTEM |
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| Zhou Qingchun.THE STATE DENSITY OF THE HEAVY FERMION SYSTEM[J].Journal of China University of Petroleum,1990(2). |
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| Authors: | Zhou Qingchun |
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| Affiliation: | Dept. of Mathematics and Physics |
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| Abstract: | In this paper the slave-boson mean field method is appliedto a Kondo lattice model. The state density of electrons in the heavy Fermion system at low temperatures is calculated. Results show that there is a pseudo-gap at the Fermi surface at extremely low temperatures, and the pseudo-gap will be replaced by a state density peak at higher temperatures. |
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| Keywords: | Heavy Fermion system Hamiltonian Green's function State desity Pseudo-gap |
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