Critical Nature of Non-Fermi Liquid in Spin 3/2 Multipolar Kondo Model(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
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概要
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A multipolar Kondo model of an impurity spin S_I=3/2 interacting with conduction electrons with spin s_c=3/2 is investigated using boundary conformal field theory. A two-channel Kondo (2CK)-like non-Fermi liquid (NFL) under the particle-hole symmetry is derived explicitly using a "superspin absorption" in the sector of a hidden symmetry, SO(5). We discuss the difference between the usual spin-1/2 2CK NFL fixed point and the present one. In particular, we find that, unlike the usual 2CK model, the low temperature impurity specific heat is proportional to temperature.
- 2005-12-15
著者
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HATTORI Kazumasa
Division of Materials Physics, Department of Materials Engineering Science, Graduate School of Engin
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Hattori Kazumasa
Division Of Materials Physics Department Of Materials Engineering Science Graduate School Of Enginee
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HATTORI Kazumasa
Division of Materials Physics, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University
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