Heavy-fermion quasiparticles in UPt3

L. Taillefer and G. G. Lonzarich
Phys. Rev. Lett. 60, 1570 – Published 11 April 1988
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Abstract

The quasiparticle band structure of the heavy-fermion superconductor UPt3 has been investigated by means of angle-resolved measurements of the de Haasvan Alphen effect. Most of the results are consistent with a model of five quasiparticle bands at the Fermi level corresponding to Fermi surfaces similar to those calculated by band theory. However, as inferred from the extremely high cyclotron masses, the quasiparticle bands are much flatter than the calculated ones. The nature of the observed quasiparticles and their relationship to thermodynamic properties are briefly considered.

  • Received 21 October 1987

DOI:https://doi.org/10.1103/PhysRevLett.60.1570

©1988 American Physical Society

Authors & Affiliations

L. Taillefer and G. G. Lonzarich

  • Cavendish Laboratory, Cambridge CB3 0HE, United Kingdom

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Vol. 60, Iss. 15 — 11 April 1988

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