Heavy quasiparticles in the ferromagnetic superconductor ZrZn2.
Phys Rev Lett
; 90(5): 057003, 2003 Feb 07.
Article
em En
| MEDLINE
| ID: mdl-12633391
ABSTRACT
We report a study of the de Haas-van Alphen effect in the normal state of the ferromagnetic superconductor ZrZn2. Our results are generally consistent with a linear muffin-tin orbital band structure which predicts four exchange-split Fermi surface sheets. Quasiparticle effective masses are enhanced by a factor of 4.9 implying a strong coupling to magnetic excitations or phonons. ZrZn2 is unique among metallic ferromagnets in that it has a very large density of states in the ferromagnetic phase.
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Base de dados:
MEDLINE
Tipo de estudo:
Prognostic_studies
Idioma:
En
Revista:
Phys Rev Lett
Ano de publicação:
2003
Tipo de documento:
Article
País de afiliação:
Reino Unido