Anisotropy in the physical properties of UNiGa under high pressure

F. Honda, G. Oomi, A. V. Andreev, K. Prokeš, L. Havela, V. Sechovský

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1 Citation (Scopus)


The linear thermal expansion, compressibility and magnetostriction of UNiGa have been measured under high pressure. Huge anisotropic behaviors are observed in these physical quantities. The linear thermal expansion coefficients are α(a) ~ 16 · 10-6 K-1 along the a-axis and a(c) ~ 5 · 10-6 K-1 along the c-axis, and the linear compressibilities at room temperature are κ(a) ~ 3.6 · 10-3 GPa-1 and κ(c) ~ 1.7 · 10-3 GPa-1 along a-axis and c-axes, respectively. UNiGa orders antiferromagnetically below T(N) = 39 K and shows a metamagnetic transition at 4.2 K in magnetic field B(C) = 1 T. It is found that T(N) decreases and B(C) increases with increasing pressure.

Original languageEnglish
Pages (from-to)441-444
Number of pages4
JournalJournal of Radioanalytical and Nuclear Chemistry
Issue number3
Publication statusPublished - 1999
Externally publishedYes

ASJC Scopus subject areas

  • Analytical Chemistry
  • Nuclear Energy and Engineering
  • Radiology Nuclear Medicine and imaging
  • Pollution
  • Spectroscopy
  • Public Health, Environmental and Occupational Health
  • Health, Toxicology and Mutagenesis


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