Thermoelectric power quantum oscillations in the ferromagnet UGe${}_2$

Abstract

We present thermoelectric power and resistivity measurements in the ferromagnet UGe${}_2$ as a function of temperature and magnetic field. At low temperature, huge quantum oscillations are observed in the thermoelectric power as a function of the magnetic field applied along the $a$ axis. The frequencies of the extreme orbits are determined and an analysis of the cyclotron masses is performed following different theoretical approaches for quantum oscillations detected in the thermoelectric power. They are compared to those obtained by Shubnikov-de Haas experiments on the same crystal and previous de Haas-van Alphen experiments. The agreement of the different probes confirms thermoelectric power as an excellent probe to extract simultaneously both microscopic and macroscopic information on the Fermi-surface properties. Band-structure calculations of UGe${}_2$ in the ferromagnetic state are compared to the experiment.

arXiv comment10 figures, 12 pages, accepted for publication in Phys. Rev. B

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Cited by in corpus (12)

• Review of U-based Ferromagnetic Superconductors: Comparison between UGe2, URhGe, and UCoGe
• Thermoelectric quantum oscillations in ZrSiS
• Crystal growth and quantum oscillations in the topological chiral semimetal CoSi
• Tricritical wings and modulated magnetic phases in LaCrGe${}_3$ under pressure
• Thermopower and Unconventional Nernst in the Predicted Type-II Weyl Semi-metal WTe${}_2$
• Lifshitz Transitions in the Ferromagnetic Superconductor UCoGe
• Quantum oscillations in the non-centrosymmetric superconductor and topological nodal-line semimetal PbTaSe${}_2$
• Critical point for Bose-Einstein condensation of excitons in graphite
• Magnetic domain depinning as possible evidence for two ferromagnetic phases in LaCrGe${}_3$
• Coexisting Kondo hybridization and itinerant f-electron ferromagnetism in UGe2
• Fermi Surfaces in the Antiferromagnetic, Paramagnetic and Polarized Paramagnetic States of CeRh2Si2 Compared with Quantum Oscillation Experiments
• Electronic Structure of UGe${}_{2\pm x}$ Thin Films from Photoelectron Spectroscopy