Idioma:

Local heavy quasiparticle in four-level kondo model

HATTORI, Kazumasa ; HIRAYAMA, Yosuke ; MIYAKE, Kazumasa

Journal of the Physical Society of Japan, 2005-12, Vol.74 (12), p.3306-3313 [Periódico revisado por pares]

Texto completo disponível

Citações Citado por

Título:
Local heavy quasiparticle in four-level kondo model
Autor: HATTORI, Kazumasa ; HIRAYAMA, Yosuke ; MIYAKE, Kazumasa
Assuntos: Condensed matter: electronic structure, electrical, magnetic, and optical properties ; Electronic conduction in metals and alloys ; Electronic transport in condensed matter ; Exact sciences and technology ; Physics ; Scattering mechanisms and kondo effect
É parte de: Journal of the Physical Society of Japan, 2005-12, Vol.74 (12), p.3306-3313
Descrição: An impurity four-level Kondo model, in which an ion is tunneling among 4-stable points and interacting with surrounding conduction electrons, is investigated using both perturbative and numerical renormalization group methods. The results of numerical renormalization group studies show that it is possible to construct the ground state wavefunction including the excited ion states if we take into account the interaction between the conduction electrons and the ion. The resultant effective mass of quasiparticles is moderately enhanced. This result offers a good explanation for the enhanced and magnetically robust Sommerfeld coefficient observed in SmOs4Sb12, some other filled-skutterudites, and clathrate compounds.
Editor: Tokyo: Institute of Pure and Applied Physics
Idioma: Inglês

Links

Voltar para lista de resultados

Anterior Resultado 5 Avançar Ir para próxima página