Fermi surface and superconductivity in noncentrosymmetric CeRh Si3

T. Terashima; Y. Takahide; T. Matsumoto; S. Uji; N. Kimura; Hayuyoshi Aoki; H. Harima

doi:10.1103/PhysRevB.76.054506

Fermi surface and superconductivity in noncentrosymmetric CeRh Si3

T. Terashima, Y. Takahide, T. Matsumoto, S. Uji, N. Kimura, Hayuyoshi Aoki, H. Harima

SCI - Physics

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

24 Citations (Scopus)

Abstract

We report measurements of the ac magnetic susceptibility and de Haas-van Alphen effect (dHvA) in CeRh Si3 up to a pressure P=29.5 kbar with the field in the c direction. The observed Fermi surface suggests that Ce 4f electrons are itinerant even when antiferromagnetic order occurs. Effective masses decrease with P: no enhancement is observed as the antiferromagnetic transition temperature is reduced by the application of pressure. Analyses of dHvA oscillations in the mixed state indicate that the influence of the superconducting energy gap is negligible for some orbits.

Original language	English
Article number	054506
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	76
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevB.76.054506
Publication status	Published - 2007 Aug 7

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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AU - Terashima, T.

AU - Takahide, Y.

AU - Matsumoto, T.

AU - Uji, S.

AU - Kimura, N.

AU - Aoki, Hayuyoshi

AU - Harima, H.

PY - 2007/8/7

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AB - We report measurements of the ac magnetic susceptibility and de Haas-van Alphen effect (dHvA) in CeRh Si3 up to a pressure P=29.5 kbar with the field in the c direction. The observed Fermi surface suggests that Ce 4f electrons are itinerant even when antiferromagnetic order occurs. Effective masses decrease with P: no enhancement is observed as the antiferromagnetic transition temperature is reduced by the application of pressure. Analyses of dHvA oscillations in the mixed state indicate that the influence of the superconducting energy gap is negligible for some orbits.

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