Electrical Resistivity in Enhanced Nuclear Magnets

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概要

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• Electrical resistivity is calculated on the basis of the effective nuclear Hamiltonian above and below the nuclear ordering temperature T_c. The conduction electrons are scattered by the nuclear spins mediated by the f-electrons through the s-f exchange interaction and the hyperfine interaction. By the short range order, the resistivity increases or decreases from the value of the non-interacting nuclear spin system depending on the sign of the RKKY interaction and the size of k_F. In low temperatures the resistivity is calculated by the spin wave approximation. The T-dependence reflects the crystal field anisotropy through the dispersion relation of the spin wave. It is shown also that the aspherical Coulomb interaction, which works sometimes to the resistivity at high temperatures, is not effective in this low temperature region.

• 社団法人日本物理学会の論文
• 1993-12-15

著者

• Aoyama Shingo

  Department Of Physics Faculty Of Science Osaka City University

• Aoyama Shingo

  Department Of Physics Osaka City University

関連論文

• Field Induced Phase Transitions in Systems with a Crystalline Field Singlet Ground State
• Quantum Effect in Enhanced Nuclear Magnets
• Electrical Resistivity in Enhanced Nuclear Magnets

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