| 弱色散Kondo晶格模型 |
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| 引用本文： | 周青春.弱色散Kondo晶格模型[J].中国石油大学学报(自然科学版),1990(5). |
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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： | 从s—f交换模型出发,在f带中引入弱色散项,讨论了重费米子系统正常态的低温特性。文中应用自洽场近似计算了低温磁化率和低温电阻率,结果表明,弱色散Kondo晶格模型能够解释重费米子系统的低温反常现象。
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| 关 键 词： | Kondo晶格 态密度 磁化率 电阻率 重费米子系统 |
A KONDQ LATTICE MODEL WITH SMALL DISPERSION |
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| Zhou Qingchun.A KONDQ LATTICE MODEL WITH SMALL DISPERSION[J].Journal of China University of Petroleum,1990(5). |
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| Authors: | Zhou Qingchun |
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| Institution: | Dept. of Mathematics and Physics |
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| Abstract: | The low temperature features of normal state heavy-fermion systems are discussed by introducing a small dispersion term to f-band in the s-f exchange model. The susceptibility and the resistivity at low temperatures are calculated with the mean field approximation. The results show that the low temperature abnormalities of heavy-fermion systems can be explained with the given model. |
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| Keywords: | Kondo lattice State density Susceptibility Resistivity Heavy fermion system |
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