In this paper,we present a method of calculating the low-temperature resistivity by means of the new transprt equation for manyparticle systems. With only very simple calculations, the resistivity can be easily found.Our results show that the resistivity increases with decreasing temperature and does not exhibit logarithmically divergent behwior at T=O.Compared with other calculation,the new method overcomes the defect of the divergence of the Kondo resistivity and has much simpler calcula-tion swithout solving the integral equation of nonflip T matrix. The Kondo temperature Tk is also obtained.
Abstract
In this paper,we present a method of calculating the low-temperature resistivity by means of the new transprt equation for manyparticle systems. With only very simple calculations, the resistivity can be easily found.Our results show that the resistivity increases with decreasing temperature and does not exhibit logarithmically divergent behwior at T=O.Compared with other calculation,the new method overcomes the defect of the divergence of the Kondo resistivity and has much simpler calcula-tion swithout solving the integral equation of nonflip T matrix. The Kondo temperature Tk is also obtained.
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参考文献
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[10] G.D.Mahan,"Many-Particle Physics",Plenum Press,New York(1981).
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脚注
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基金
Project supported in part by the Science Fund of Chinese Academy of Sciences
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