Pressure-induced superconductivity in UIr

Teruhiko Akazawa, Hiroyuki Hidaka, Hisashi Kotegawa, Tatsuo Kobayashi, Tabito Fujiwara, Etsuji Yamamoto, Yoshinori Haga, Rikio Settai, Yoshichika Onuki

Research output: Contribution to journalArticle

127 Citations (Scopus)

Abstract

Pressure-induced superconductivity is found in UIr without inversion symmetry. The pressure-temperature phase diagram has been investigated by means of the electrical resistivity and magnetization measurements under high pressure. The phase diagram consists of two magnetic phases, the Ising-like ferromagnetic phase (FM1) at low pressures and another magnetic phase (FM2) with the small ferromagnetic component along the [101] direction at high pressures. Superconductivity is observed in the narrow pressure range near the disappearance point of the FM2 phase, where the temperature dependence of resistivity follows the non-Fermi liquid form of T1.6. From these experimental facts, the superconductivity is considered to be associated with the critical fluctuation with the disappearance of FM2 phase.

Original languageEnglish
Pages (from-to)3129-3134
Number of pages6
JournalJournal of the Physical Society of Japan
Volume73
Issue number11
DOIs
Publication statusPublished - Nov 2004

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superconductivity
phase diagrams
electrical resistivity
low pressure
inversions
magnetization
temperature dependence
symmetry
liquids
temperature

Keywords

  • Critical fluctuation
  • Ferromagnetism
  • Inversion symmetry
  • Superconductivity
  • UIr

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Akazawa, T., Hidaka, H., Kotegawa, H., Kobayashi, T., Fujiwara, T., Yamamoto, E., ... Onuki, Y. (2004). Pressure-induced superconductivity in UIr. Journal of the Physical Society of Japan, 73(11), 3129-3134. https://doi.org/10.1143/JPSJ.73.3129

Pressure-induced superconductivity in UIr. / Akazawa, Teruhiko; Hidaka, Hiroyuki; Kotegawa, Hisashi; Kobayashi, Tatsuo; Fujiwara, Tabito; Yamamoto, Etsuji; Haga, Yoshinori; Settai, Rikio; Onuki, Yoshichika.

In: Journal of the Physical Society of Japan, Vol. 73, No. 11, 11.2004, p. 3129-3134.

Research output: Contribution to journalArticle

Akazawa, T, Hidaka, H, Kotegawa, H, Kobayashi, T, Fujiwara, T, Yamamoto, E, Haga, Y, Settai, R & Onuki, Y 2004, 'Pressure-induced superconductivity in UIr', Journal of the Physical Society of Japan, vol. 73, no. 11, pp. 3129-3134. https://doi.org/10.1143/JPSJ.73.3129
Akazawa T, Hidaka H, Kotegawa H, Kobayashi T, Fujiwara T, Yamamoto E et al. Pressure-induced superconductivity in UIr. Journal of the Physical Society of Japan. 2004 Nov;73(11):3129-3134. https://doi.org/10.1143/JPSJ.73.3129
Akazawa, Teruhiko ; Hidaka, Hiroyuki ; Kotegawa, Hisashi ; Kobayashi, Tatsuo ; Fujiwara, Tabito ; Yamamoto, Etsuji ; Haga, Yoshinori ; Settai, Rikio ; Onuki, Yoshichika. / Pressure-induced superconductivity in UIr. In: Journal of the Physical Society of Japan. 2004 ; Vol. 73, No. 11. pp. 3129-3134.
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