Quantum Oscillations in the Anomalous Phase in Sr3Ru2O7

Jean-Francois Mercure, S. K. Goh, E. C. T. O'Farrell, Robin Stuart Perry, M. L. Sutherland, Andreas Winfried Rost, Santiago Andres Grigera, Rodolfo Alberto Borzi, P. Gegenwart, Andrew Mackenzie

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

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.

Original languageEnglish
Article number176401
Number of pages4
JournalPhysical Review Letters
Volume103
Issue number17
DOIs
Publication statusPublished - 23 Oct 2009

Keywords

  • HIGH LANDAU-LEVELS
  • MAGNETIC-FIELD
  • CRITICALITY
  • TRANSITION
  • STATE

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