Themal Expansion and Magnetostriction of YbAuCu4

Tetsuya Tkeuchi, Yusuke Hirose, Ryoma Tsunoda, Fuminori Honda, Rikio Settai

Research output: Contribution to journalConference article

Abstract

Precise thermal expansion and magnetostriction measurements were performed on the heavyfermion compound YbAuCu4 in order to examine the crossover valence transition at TV which was proposed by the nuclear magnetic resonance measurements. The temperature dependence of the thermal expansion coefficient α under magnetic fields shows a broad peak, which shifts to higher temperatures with increasing magnetic fields. The corresponding linear thermal expansion Δℓ/ℓ parallel to the magnetic field of 7.0 T shows a marked decrease below about 10 K, indicating a contraction of sample length at low temperatures. These results are discussed in relation to the observed temperature dependence of the nuclear quadrupole frequency νQ under magnetic fields.

Original languageEnglish
Pages (from-to)460-467
Number of pages8
JournalPhysics Procedia
Volume75
DOIs
Publication statusPublished - 2015 Jan 1
Event20th International Conference on Magnetism, ICM 2015 - Barcelona, Spain
Duration: 2015 Jul 52015 Jul 10

Keywords

  • Magnetostrcition
  • Thermal expansion
  • YbAuCu

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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