Possible non-Fermi-liquid behaviour in URh1/3Ni2/3Al

K Prokes, I H Hagmusa, Pedro Estrela, J C P Klaasse, A V Andreev, V Sechovsky, E Brueck, F R de Boer

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Abstract

The quasiternary intermetallic compound URh1/3Ni2/3Al crystallizes in the hexagonal ZrNiAl-type of structure, like the parent compounds URhAl (ferromagnet, TC = 27 K) and UNiAl (antiferromagnet, TN = 19 K). A delicate balance between ferromagnetic and antiferromagnetic interactions leads to suppression of magnetic order. The low-temperature properties show all attributes of a non-Fermi-liquid system, i.e. divergence of the low-temperature specific heat divided by temperature, which behaves as -ln(T/T0), divergence of the magnetic susceptibility and absence of a T2 dependence in the electrical resistivity. URh1/3Ni2/3Al also exhibits an enhanced low-temperature specific heat of 225 mJ/molU K2. The compound can be classified as a NFL system in which the magnetic phase transition is at zero kelvin.
Original languageEnglish
Pages (from-to)377-378
Number of pages2
JournalPhysica B Condensed Matter
Volume281-282
DOIs
Publication statusPublished - 2000

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    Prokes, K., Hagmusa, I. H., Estrela, P., Klaasse, J. C. P., Andreev, A. V., Sechovsky, V., Brueck, E., & de Boer, F. R. (2000). Possible non-Fermi-liquid behaviour in URh1/3Ni2/3Al. Physica B Condensed Matter, 281-282, 377-378. https://doi.org/10.1016/S0921-4526(99)01140-0