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Magnetism in UNi2Ga3

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Zeitschrift für Physik B Condensed Matter

Abstract

We present the physical properties of the new intermetallic compound UNi2Ga3. This compound crystallizes in the hexagonal CaCu5-structure, and bulk experiments (specific heat c p, susceptibility X, magnetization M and resistivity ρ) indicate the system to undergo a magnetic transition at 9.5 K. No superconductivity is observed down to 50 mK. The magnetic transition in UNi2Ga3 closely resembles that of the incommensurably ordered state in the related heavy-fermion superconductor UNi2Al3. In addition, and independently from the conditions for sample preparation, we found indications for a considerable degree of lattice disorder, likely due to structural Ga/Ni disorder. We discuss our results, particularly the absence of superconductivity in UNi2Ga3, in comparison to UNi2Al3.

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Authors and Affiliations

  1. Kamerlingh Onnes Laboratory, Leiden University, P.O. Box 9506, 2300 RA, Leiden, The Netherlands

    S. Süllow, G. J. Nieuwenhuys, A. A. Menovsky & J. A. Mydosh

  2. Department of Physics, 2071 Randall Laboratory, University of Michigan, Ann Arbor, MI, 48109-1120, USA

    S. Süllow

  3. Van der Waals-Zeeman Laboratory, University of Amsterdam, Valckenierstraat 68, 1018 XE, Amsterdam, The Netherlands

    A. A. Menovsky

Authors
  1. S. Süllow
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  2. G. J. Nieuwenhuys
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  3. A. A. Menovsky
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  4. J. A. Mydosh
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Süllow, S., Nieuwenhuys, G.J., Menovsky, A.A. et al. Magnetism in UNi2Ga3 . Zeitschrift für Physik B Condensed Matter 104, 185–188 (1997). https://doi.org/10.1007/s002570050437

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  • DOI: https://doi.org/10.1007/s002570050437

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