High-pressure effect on the electronic state in CeNiGe3

Pressure-induced superconductivity

M. Nakashima, K. Tabata, A. Thamizhavel, Tatsuo Kobayashi, M. Hedo, Y. Uwatoko, K. Shimizu, R. Settai, Y. Onuki

Research output: Contribution to journalArticle

58 Citations (Scopus)

Abstract

We have measured the electrical resistivity of an antiferromagnetic Kondo compound CeNiGe3 under pressure. The Néel temperature initially increases with pressure P up to 3 GPa, then decreases rather steeply with further increasing pressure, and becomes zero at a critical pressure P c ≃ 5.5 GPa. The A and ρ0 values of the resistivity ρ0 + AT2 in the Fermi liquid relation become maximum around P c, the A value attaining an extremely large value which is comparable with that in a heavy fermion superconductor CeCu2Si2. Superconductivity is found below 0.48 K in a wide pressure region from 4 to 10 GPa. The upper critical field Hc2(0) is about 2 T, indicating heavy fermion superconductivity.

Original languageEnglish
JournalJournal of Physics Condensed Matter
Volume16
Issue number20
DOIs
Publication statusPublished - May 26 2004

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High pressure effects
Electronic states
pressure effects
Superconductivity
superconductivity
electronics
heavy fermion superconductors
electrical resistivity
Heavy fermion superconductors
critical pressure
Fermi liquids
Fermions
fermions

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

High-pressure effect on the electronic state in CeNiGe3 : Pressure-induced superconductivity. / Nakashima, M.; Tabata, K.; Thamizhavel, A.; Kobayashi, Tatsuo; Hedo, M.; Uwatoko, Y.; Shimizu, K.; Settai, R.; Onuki, Y.

In: Journal of Physics Condensed Matter, Vol. 16, No. 20, 26.05.2004.

Research output: Contribution to journalArticle

Nakashima, M, Tabata, K, Thamizhavel, A, Kobayashi, T, Hedo, M, Uwatoko, Y, Shimizu, K, Settai, R & Onuki, Y 2004, 'High-pressure effect on the electronic state in CeNiGe3: Pressure-induced superconductivity', Journal of Physics Condensed Matter, vol. 16, no. 20. https://doi.org/10.1088/0953-8984/16/20/L01
Nakashima, M. ; Tabata, K. ; Thamizhavel, A. ; Kobayashi, Tatsuo ; Hedo, M. ; Uwatoko, Y. ; Shimizu, K. ; Settai, R. ; Onuki, Y. / High-pressure effect on the electronic state in CeNiGe3 : Pressure-induced superconductivity. In: Journal of Physics Condensed Matter. 2004 ; Vol. 16, No. 20.
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