English

Heavy quasiparticles in the ferromagnetic superconductor ZrZn2

Superconductivity 2009-11-07 v1

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 an LMTO band structure calculation which predicts four exchange-split Fermi surface sheets. Quasiparticle effective masses are enhanced by a factor of about 4.9 implying a strong coupling to magnetic excitations or phonons. Our measurements provide insight in to the mechanism for superconductivity and unusual thermodynamic properties of ZrZn2.

Keywords

Cite

@article{arxiv.cond-mat/0207285,
  title  = {Heavy quasiparticles in the ferromagnetic superconductor ZrZn2},
  author = {S. J. C. Yates and G. Santi and S. M. Hayden and P. J. Meeson and S. B. Dugdale},
  journal= {arXiv preprint arXiv:cond-mat/0207285},
  year   = {2009}
}

Comments

5 pages, 2 figures (one color)