Robust Fermi-Surface Morphology of CeRhIn5 across the Putative Field-Induced Quantum Critical Point
- 6 January 2021
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 126 (1), 016403
- https://doi.org/10.1103/physrevlett.126.016403
Abstract
We report a comprehensive de Haas–van Alphen (dHvA) study of the heavy-fermion material 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 branch, which has not been observed so far. Comparison of our angle-dependent dHvA spectra with those of the non- compound and with band-structure calculations evidences that the Ce electrons in remain localized over the whole field range. This rules out any significant Fermi-surface reconstruction, either at the suggested nematic phase transition at or at the putative quantum critical point at . Our results rather demonstrate the robustness of the Fermi surface and the localized nature of the electrons inside and outside of the antiferromagnetic phase.
Funding Information
- Centre National de la Recherche Scientifique
- Deutsche Forschungsgemeinschaft (39085490)
- Japan Society for the Promotion of Science (JP15H05882, JP15H05884, JP15H05886, JP15K21732)
- Agence Nationale de la Recherche
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