The de Haas-van Alphen effect in Kondo systems

作者: E W Fenton

DOI: 10.1088/0305-4608/6/3/012

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摘要: In Kondo systems, de Haas-van Alphen experiments determine a spin-splitting term in the conduction-electron self-energy. It is shown that for all temperatures and magnetic fields, presence of normal potential scattering from impurity, Landau levels given exactly with Re Sigma spindown(0)-Re spinup(0)=cJ(Sz)K sigma (0) self energy at Fermi level (Sz)K expectation value impurity spin including effects. This equation also applies both large-U (Kondo) small-U limits Anderson model, to (Sz)A case. (Sz)K,A does not obey field temperature dependence Brillouin function, but instead follows Langevin function. so because Friedel-Anderson d orbitals are populated successively by many electrons during impurity-spin relaxation time.

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