Anisotropic physical properties of layered antiferromagnet U2Pt6Ga15

Yuji Matsumoto*, Yoshinori Haga, Etsuji Yamamoto, Tetsuya Takeuchi, Atsushi Miyake, Masashi Tokunaga

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

We have successfully synthesized a uranium intermetallic compound U2Pt6Ga15 via the gallium flux method. The crystal structure, magnetization, specific heat, and resistivity are investigated. U2Pt6Ga15 is found to crystallize in the hexagonal Sc0.6Fe2Si4.9-type structure with the lattice parameters a = 4.3038(5) and c = 16.297(2) Å. U2Pt6Ga15 is an antiferromagnet with the transition temperature TN = 25.8 K. The enhanced electronic specific heat coefficient γ = 0.1 J/K2 U-mol, the coefficient for T2-term of the electrical resistivity at low temperature A = 0.085 μΩcm/K2, and logarithmic temperature dependence of resistivity characterize this compound as a moderately heavy-fermion system.

Original languageEnglish
Article number074707
JournalJournal of the Physical Society of Japan
Volume90
Issue number7
DOIs
StatePublished - 2021/07/01

ASJC Scopus subject areas

  • General Physics and Astronomy

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