The de Haas-van Alphen effect in URu2Si2 under pressure

M. Nakashima; H. Ohkuni; Y. Inada; R. Settai; Y. Haga; E. Yamamoto; Y. Onuki

doi:10.1088/0953-8984/15/28/316

The de Haas-van Alphen effect in URu₂Si₂ under pressure

M. Nakashima, H. Ohkuni, Y. Inada, R. Settai, Y. Haga, E. Yamamoto, Y. Onuki

Research output: Contribution to journal › Article › peer-review

45 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	S2011-S2014
Journal	Journal of Physics Condensed Matter
Volume	15
Issue number	28
DOIs	https://doi.org/10.1088/0953-8984/15/28/316
Publication status	Published - Jul 23 2003
Externally published	Yes

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics

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abstract = "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.",

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AU - Nakashima, M.

AU - Ohkuni, H.

AU - Inada, Y.

AU - Settai, R.

AU - Haga, Y.

AU - Yamamoto, E.

AU - Onuki, Y.

PY - 2003/7/23

Y1 - 2003/7/23

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AB - 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.

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