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arXiv · 2304.07678

de Haas-van Alphen Oscillations for the Field Along c-axis in UTe2

Dai Aoki·Ilya Sheikin·Alix McCollam·Jun Ishizuka·Youichi Yanase·Gerard Lapertot·Jacques Flouquet·Georg Knebel
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Abstract

We performed de Haas-van Alphen (dHvA) experiments in the spin-triplet superconductor UTe2 for magnetic field along the c-axis above 15T. Three fundamental dHvA frequencies, named alpha1, alpha2 and beta corresponding to the cross sections of cylindrical Fermi surfaces (FSs) with large cyclotron effective masses (33-43 m0) were detected. No other fundamental dHvA frequencies were detected at high frequency range, suggesting a cylindrical-shaped electron FS without connecting at the Z point of the Brillouin zone. However, the existence of small pocket FSs associated with extremely heavy masses cannot be fully excluded.

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Dai Aoki, Ilya Sheikin, Alix McCollam, Jun Ishizuka, Youichi Yanase, Gerard Lapertot, Jacques Flouquet, Georg Knebel. 2023-04-16. de Haas-van Alphen Oscillations for the Field Along c-axis in UTe2. https://doi.org/10.7566/jpsj.92.065002

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