Field-Induced Lifshitz Transition without Metamagnetism in CeIrIn(5).

نویسندگان

  • D Aoki
  • G Seyfarth
  • A Pourret
  • A Gourgout
  • A McCollam
  • J A N Bruin
  • Y Krupko
  • I Sheikin
چکیده

We report high magnetic field measurements of magnetic torque, thermoelectric power, magnetization, and the de Haas-van Alphen effect in CeIrIn_{5} across 28 T, where a metamagnetic transition was suggested in previous studies. The thermoelectric power displays two maxima at 28 and 32 T. Above 28 T, a new, low de Haas-van Alphen frequency with a strongly enhanced effective mass emerges, while the highest frequency observed at low field disappears entirely. This suggests a field-induced Lifshitz transition. However, longitudinal magnetization does not show any anomaly up to 33 T, thus ruling out a metamagnetic transition at 28 T.

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عنوان ژورنال:
  • Physical review letters

دوره 116 3  شماره 

صفحات  -

تاریخ انتشار 2016