Anomalous field-insensitive heavy-fermion state in SmOs4Sb12

Y. Aoki, S. Sanada, H. Aoki, D. Kikuchi, H. Sugawara, H. Sato

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

Extraordinary field-insensitive heavy-fermion (HF) state has been recently discovered in the filled-skutterudite SmOs4Sb12. Thermodynamic analysis indicates that weak temperature dependence of magnetization reflects the field insensitiveness of the HF state. The observed magnetic anisotropy is qualitatively consistent with a quartet crystalline-electric-field (CEF) ground state of Sm ions. Largely suppressed magnetization suggests screening of Sm magnetic moments taking place in the HF state.

Original languageEnglish
Pages (from-to)54-55
Number of pages2
JournalPhysica B: Condensed Matter
Volume378-380
Issue numberSPEC. ISS.
DOIs
Publication statusPublished - 2006 May 1

Keywords

  • Filled skutterudite
  • Heavy fermion
  • Kadowaki-Woods relation
  • SmOsSb

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Anomalous field-insensitive heavy-fermion state in SmOs<sub>4</sub>Sb<sub>12</sub>'. Together they form a unique fingerprint.

Cite this