Pressure-induced superconductivity in CePd5Al2 and CeRhGe2, new family of heavy fermion superconductors

Fuminori Honda, Shingo Yoshiuchi, Yusuke Hirose, Taichi Nakamura, Etsuji Yamamoto, Naoyuki Tateiwa, Yoshinori Haga, Tetsuya Takeuchi, Rikio Settai, Yoshichika Onuki

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Antiferromagnets CePd5Al2 and CeRhGe2 with the quasi-two dimensional electronic state have been found to become superconductive by measuring the electrical resistivity under pressure. In these compounds, the Néel temperature decreases at high pressure and becomes approximately zero at critical pressure Pc = 9 GPa in CePd5Al2 and Pc = 7 GPa in CeRhGe2. Superconductivity was observed around Pc. In CePd5Al2, the upper critical field Hc2 is found to be highly anisotropic among H||[001] and [100], reflecting nearly cylindrical Fermi surfaces along the tetragonal [001] direction.

Original languageEnglish
Pages (from-to)617-620
Number of pages4
JournalPhysica Status Solidi (B) Basic Research
Volume247
Issue number3
DOIs
Publication statusPublished - 2010 Mar
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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