Robust Fermi-Surface Morphology of CeRhIn5 across the Putative Field-Induced Quantum Critical Point

S. Mishra, J. Hornung, M. Raba, J. Klotz, T. Förster, H. Harima, D. Aoki, J. Wosnitza, A. McCollam, and I. Sheikin
Phys. Rev. Lett. 126, 016403 – Published 6 January 2021
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Abstract

We report a comprehensive de Haas–van Alphen (dHvA) study of the heavy-fermion material CeRhIn5 in magnetic fields up to 70 T. Several dHvA frequencies gradually emerge at high fields as a result of magnetic breakdown. Among them is the thermodynamically important β1 branch, which has not been observed so far. Comparison of our angle-dependent dHvA spectra with those of the non-4f compound LaRhIn5 and with band-structure calculations evidences that the Ce 4f electrons in CeRhIn5 remain localized over the whole field range. This rules out any significant Fermi-surface reconstruction, either at the suggested nematic phase transition at B*30T or at the putative quantum critical point at Bc50T. Our results rather demonstrate the robustness of the Fermi surface and the localized nature of the 4f electrons inside and outside of the antiferromagnetic phase.

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  • Received 11 May 2020
  • Revised 18 November 2020
  • Accepted 15 December 2020

DOI:https://doi.org/10.1103/PhysRevLett.126.016403

© 2021 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

S. Mishra1, J. Hornung2,3, M. Raba1,†, J. Klotz2, T. Förster2, H. Harima4, D. Aoki5, J. Wosnitza2,3, A. McCollam6, and I. Sheikin1,*

  • 1Laboratoire National des Champs Magnétiques Intenses (LNCMI-EMFL), CNRS, UGA, 38042 Grenoble, France
  • 2Hochfeld-Magnetlabor Dresden (HLD-EMFL) and Würzburg-Dresden Cluster of Excellence ct.qmat, Helmholtz-Zentrum Dresden-Rossendorf, 01328 Dresden, Germany
  • 3Institut für Festkörper- und Materialphysik, TU Dresden, 01062 Dresden, Germany
  • 4Graduate School of Science, Kobe University, Kobe 657-8501, Japan
  • 5Institute for Materials Research, Tohoku University, Oarai, Ibaraki, 311-1313, Japan
  • 6High Field Magnet Laboratory (HFML-EMFL), Radboud University, 6525 ED Nijmegen, The Netherlands

  • *Corresponding author. ilya.sheikin@lncmi.cnrs.fr
  • Present address: IRIG/DEPHY/MEM-MDN, CEA-Grenoble, 17 Avenue des Martyrs, 38000 Grenoble, France.

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Issue

Vol. 126, Iss. 1 — 8 January 2021

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