Correlated Fermi-Liquid State Formed with Overlapping Kondo Clouds : A Variational Study
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概要
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A simple variational description is given on the nature of overlapping Kondo clouds, which compensate the localized f-spins in the Kondo lattice. It is shown explicitly that the f-electrons participate in forming a "large Fermi surface", although they are strictly localized. The resulting correlated Fermi liquid, i. e., heavy fermions, is examined with the variational Monte Carlo method and is compared with the Gutzwiller approximation. The relation to the periodic Anderson model is also discussed in this connection.
- 理論物理学刊行会の論文
- 1991-02-05
著者
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Shiba Hiroyuki
Department Of Computer Science Gunma University Faculty Of Engineering
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Fazekas Patrik
Institut Fur Theoretische Physik University Zu Koln : Central Research Institute Of Physics
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SHIBA Hiroyuki
Department of Physics, Tokyo Institute of Technology
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FAZEKAS Patrik
Institut fur Theoretische Physik, University zu Koln : Central Research Institute of Physics
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