The de Haas–van Alphen effect in URu2Si2 under pressure

We carried out a de Haas-van Alphen (dHvA) experiment under pressure on a heavy-fermion superconductor, URu2Si2. The dHvA frequency, which corresponds to a nearly spherical Fermi surface, increases slightly with increasing pressure, while the corresponding cyclotron mass decreases considerably. Neit...

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Veröffentlicht in:Journal of physics. Condensed matter 2003-07, Vol.15 (28), p.S2011-S2014
Hauptverfasser: Nakashima, M, Ohkuni, H, Inada, Y, Settai, R, Haga, Y, Yamamoto, E, Onuki, Y
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container_end_page S2014
container_issue 28
container_start_page S2011
container_title Journal of physics. Condensed matter
container_volume 15
creator Nakashima, M
Ohkuni, H
Inada, Y
Settai, R
Haga, Y
Yamamoto, E
Onuki, Y
description We carried out a de Haas-van Alphen (dHvA) experiment under pressure on a heavy-fermion superconductor, URu2Si2. The dHvA frequency, which corresponds to a nearly spherical Fermi surface, increases slightly with increasing pressure, while the corresponding cyclotron mass decreases considerably. Neither the dHvA frequency nor the cyclotron mass exhibit any abrupt change at the critical pressure of 1.5 GPa. The present result is thus inconsistent with a recent phase-separation proposal.
doi_str_mv 10.1088/0953-8984/15/28/316
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subjects Condensed matter: electronic structure, electrical, magnetic, and optical properties
Electronic structure
Exact sciences and technology
Heavy-fermion superconductors
Physics
Properties of type I and type II superconductors
Superconducting materials (excluding high-tc compounds)
Superconductivity
title The de Haas–van Alphen effect in URu2Si2 under pressure
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