Role of f electrons in the Fermi surface of the heavy fermion superconductor beta-YbAlB4

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...

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Bibliographic Details
Published in:Physical review letters 2009-05, Vol.102 (21), p.216402-216402
Main Authors: O'Farrell, E C T, Tompsett, D A, Sebastian, S E, Harrison, N, Capan, C, Balicas, L, Kuga, K, Matsuo, A, Kindo, K, Tokunaga, M, Nakatsuji, S, Csányi, G, Fisk, Z, Sutherland, M L
Format: Article
Language:English
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Summary: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.
ISSN:0031-9007
DOI:10.1103/PhysRevLett.102.216402