title: Role of f electrons in the Fermi surface of the heavy fermion superconductor beta-YbAlB4.
abstract: We present a detailed quantum oscillation study of the Fermi surface of the recently discovered Yb-based heavy fermion superconductor beta-YbAlB4. We compare the data, obtained at fields from 10 to 45 T, to band structure calculations performed using the local density approximation. Analysis of the data suggests that f holes participate in the Fermi surface up to the highest magnetic fields studied. We comment on the significance of these findings for the unconventional superconducting properties of this material.
authors.affiliation: Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom.
authors.forename: E C T
authors.initials: EC
authors.lastname: O'Farrell
authors.forename: D A
authors.initials: DA
authors.lastname: Tompsett
authors.forename: S E
authors.initials: SE
authors.lastname: Sebastian
authors.forename: N
authors.initials: N
authors.lastname: Harrison
authors.forename: C
authors.initials: C
authors.lastname: Capan
authors.forename: L
authors.initials: L
authors.lastname: Balicas
authors.forename: K
authors.initials: K
authors.lastname: Kuga
authors.forename: A
authors.initials: A
authors.lastname: Matsuo
authors.forename: K
authors.initials: K
authors.lastname: Kindo
authors.forename: M
authors.initials: M
authors.lastname: Tokunaga
authors.forename: S
authors.initials: S
authors.lastname: Nakatsuji
authors.forename: G
authors.initials: G
authors.lastname: Csányi
authors.forename: Z
authors.initials: Z
authors.lastname: Fisk
authors.forename: M L
authors.initials: ML
authors.lastname: Sutherland