Idioma:

Nature of heavy quasiparticles in magnetically ordered heavy fermions UPd(2)Al(3) and UPt(3)

Dressel, M ; Kasper, N ; Petukhov, K ; Gorshunov, B ; Grüner, G ; Huth, M ; Adrian, H

Physical review letters, 2002-05, Vol.88 (18), p.186404-186404 [Periódico revisado por pares]

Texto completo disponível

Citações Citado por

Título:
Nature of heavy quasiparticles in magnetically ordered heavy fermions UPd(2)Al(3) and UPt(3)
Autor: Dressel, M ; Kasper, N ; Petukhov, K ; Gorshunov, B ; Grüner, G ; Huth, M ; Adrian, H
É parte de: Physical review letters, 2002-05, Vol.88 (18), p.186404-186404
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: The optical conductivity of the heavy fermions UPd(2)Al(3) and UPt(3) has been measured in the energy range from 0.04 to 5 meV. In both compounds a well pronounced pseudogap of less than 1 meV develops in the optical response at low temperatures; we relate this to the antiferromagnetic ordering. From the energy dependence of the effective mass and scattering rate we conclude that the enhancement of the mass mainly occurs below the energy which is related to magnetic correlations between the local magnetic moments and the itinerant electrons. This implies that the magnetic order in these compounds is the prerequisite to the formation of the heavy quasiparticles and eventually to superconductivity.
Editor: United States
Idioma: Inglês

Links

Voltar para lista de resultados

Anterior Resultado 9 Avançar Ir para próxima página