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Anomalous low temperature specific heat of UCu=AL

Czechoslovak Journal of Physics, ISSN: 0011-4626, Vol: 46, Issue: SUPPL. 4, Page: 2065-2066
1996
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  • Citations
    19
    • Citation Indexes
      19

Article Description

Specific heats (C) of heavy-fermion system UCuAL (0 < x < 2) were measured systematically down to 0.15K in magnetic fields up to 5.2T. For 1.5 ≤ x ≤ 1.75, anomalous temperature dependences of specific heat at low temperatures were observed: C/T was proportional to -log T (x = 1.5) or T (x = 1.75) in the temperature range from 0.15K to 10K. The specific heats were hardly influenced by magnetic fields of 5.2T. These anomalous behaviors suggest the possibility of non-Fermi liquid ground state in UCuAI.

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