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arXiv · 1512.07388

Field-Induced Lifshitz Transition without Metamagnetism in CeIrIn$_5$

D. Aoki·G. Seyfarth·A. Pourret·A. Gourgout·A. McCollam·J. A. N. Bruin·Y. Krupko·I. Sheikin
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Abstract

We report high magnetic field measurements of magnetic torque, thermoelectric power (TEP), magnetization, and de Haas-van Alphen (dHvA) effect in CeIrIn$_5$ across 28 T, where a metamagnetic transition was suggested in previous studies. The TEP displays two maxima at 28 T and 32 T. Above 28 T, a new, low dHvA frequency with 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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D. Aoki, G. Seyfarth, A. Pourret, A. Gourgout, A. McCollam, J. A. N. Bruin, Y. Krupko, I. Sheikin. 2015-12-23. Field-Induced Lifshitz Transition without Metamagnetism in CeIrIn$_5$. https://doi.org/10.1103/physrevlett.116.037202

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