Phys. Rev. Lett. 103, 176401 (2009) [4 pages]Quantum Oscillations in the Anomalous Phase in Sr3Ru2O7Received 2 February 2009; published 22 October 2009 We report measurements of quantum oscillations detected in the putative nematic phase of Sr3Ru2O7. Improvements in sample purity enabled the resolution of small amplitude de Haas–van Alphen (dHvA) oscillations between two first order metamagnetic transitions delimiting the phase. Two distinct frequencies were observed, whose amplitudes follow the normal Lifshitz-Kosevich profile. Variations of the dHvA frequencies are explained in terms of a chemical potential shift produced by reaching a peak in the density of states, and an anomalous field dependence of the oscillatory amplitude provides information on domains. © 2009 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.103.176401
DOI:
10.1103/PhysRevLett.103.176401
PACS:
71.18.+y, 71.27.+a, 74.70.Pq
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