Transport properties accompanied by collapse of antiferromagnetism of Eu (Pt1 - x Nix)2 Si2

A. Mitsuda, Y. Ikeda, N. Ietaka, S. Fukuda, Y. Isikawa

Research output: Contribution to journalArticle

Abstract

We have measured temperature dependence of electrical resistivity ρ of Eu (Pt1 - x Nix)2 Si2 (0 ≤ x ≤ 0.25) to investigate the behavior associated with collapse of antiferromagnetism which was previously found in the magnetic susceptibility. For x ≤ 0.15, the antiferromagnetism survives but is gradually collapsed with increasing x. For x = 0.20 and 0.25, the ρ (T) curve exhibits T2 dependence corresponding to Fermi-liquid behavior. The T2 coefficient of the resistive A and Sommerfeld coefficient γ fulfill new grand Kadowaki-Woods relation, which implies that the samples of x = 0.20 and 0.25 are a member of heavy fermion systems.

Original languageEnglish
Pages (from-to)786-788
Number of pages3
JournalPhysica B: Condensed Matter
Volume403
Issue number5-9
DOIs
Publication statusPublished - 2008 Apr 1
Externally publishedYes

Keywords

  • Antiferromagnetism
  • EuPt Si
  • Substitution effect
  • Valence instability

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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