Pressure-induced superconductivity emerging from antiferromagnetic phase in CeNiGe 3

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

Research output: Contribution to journalArticle

25 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 1 2006

Keywords

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

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Pressure-induced superconductivity emerging from antiferromagnetic phase in CeNiGe <sub>3</sub>'. Together they form a unique fingerprint.

  • Cite this

    Kotegawa, H., Takeda, K., Miyoshi, T., Fukushima, S., Hidaka, H., Kobayashi, T. C., 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, 75(4), [044713]. https://doi.org/10.1143/JPSJ.75.044713