Pressure-induced superconductivity emerging from antiferromagnetic phase in CeNiGe 3

Hisashi Kotegawa, Keiki Takeda, Tomoyuki Miyoshi, Satoshi Fukushima, Hiroyuki Hidaka, Tatsuo Kobayashi, Teruhiko Akazawa, Yasuo Ohishi, Miho Nakashima, Arumugam Thamizhavel, Rikio Settai, Yoshichika Onuki

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

The antiferromagnet CeNiGe 3 exhibits superconductivity under pressure. The Néel temperature initially increases with increasing pressure up to 3 GPa and then becomes zero at a critical pressure (P C) that is located at approximately 7 GPa. We found that superconductivity emerges from 1.7 GPa in the antiferromagnetic (AF) phase removed from P C. The superconductivity is realized in a wide pressure region including P 3. The coefficient A in the resistivity and the upper critical field (H c2) significantly change against pressure. A feature of CeNiGe 3 is that the moderate heavy fermion state in the AF phase induces superconductivity.

Original languageEnglish
Article number044713
JournalJournal of the Physical Society of Japan
Volume75
Issue number4
DOIs
Publication statusPublished - Apr 2006

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emerging
superconductivity
critical pressure
fermions
electrical resistivity
coefficients
temperature

Keywords

  • Antiferromagnetism
  • CeNiGe
  • Heavy fermion
  • Pressure effect
  • Superconductivity

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Pressure-induced superconductivity emerging from antiferromagnetic phase in CeNiGe 3 . / Kotegawa, Hisashi; Takeda, Keiki; Miyoshi, Tomoyuki; Fukushima, Satoshi; Hidaka, Hiroyuki; Kobayashi, Tatsuo; Akazawa, Teruhiko; Ohishi, Yasuo; Nakashima, Miho; Thamizhavel, Arumugam; Settai, Rikio; Onuki, Yoshichika.

In: Journal of the Physical Society of Japan, Vol. 75, No. 4, 044713, 04.2006.

Research output: Contribution to journalArticle

Kotegawa, H, Takeda, K, Miyoshi, T, Fukushima, S, Hidaka, H, Kobayashi, T, Akazawa, T, Ohishi, Y, Nakashima, M, Thamizhavel, A, Settai, R & Onuki, Y 2006, 'Pressure-induced superconductivity emerging from antiferromagnetic phase in CeNiGe 3 ', Journal of the Physical Society of Japan, vol. 75, no. 4, 044713. https://doi.org/10.1143/JPSJ.75.044713
Kotegawa, Hisashi ; Takeda, Keiki ; Miyoshi, Tomoyuki ; Fukushima, Satoshi ; Hidaka, Hiroyuki ; Kobayashi, Tatsuo ; Akazawa, Teruhiko ; Ohishi, Yasuo ; Nakashima, Miho ; Thamizhavel, Arumugam ; Settai, Rikio ; Onuki, Yoshichika. / Pressure-induced superconductivity emerging from antiferromagnetic phase in CeNiGe 3 . In: Journal of the Physical Society of Japan. 2006 ; Vol. 75, No. 4.
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AU - Kobayashi, Tatsuo

AU - Akazawa, Teruhiko

AU - Ohishi, Yasuo

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