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Non-Fermi liquid regimes in U1−xMxPd2Al3(M=Y,Th) |
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| Authors: | M B Maple R P Dickey A Amann E J Freeman C Sirvent M C de Andrade and N R Dilley |
| Institution: | a Department of Physics, University of California, 9500 Gilman Dr., San Diego, La Jolla, CA 92093-0319, USA b Institute for Pure and Applied Physical Sciences, University of California, San Diego, La Jolla, CA 92093-0360, USA |
| Abstract: | The temperature-composition (T–x) phase diagram and NFL characteristics in the electrical resistivity ρ(T), specific heat C(T), and magnetic susceptibility χ(T) at low temperatures for the systems U1?xMxPd2Al3 (M=Y,Th) are described. The T–x phase diagram, the NFL characteristics, and the underlying mechanism for the NFL behavior are distinctly different for M=Y3+ and Th4+, apparently reflecting the difference in valence of the M atom substituents, and suggesting that U is tetravalent in these two systems. |
| Keywords: | Heavy fermion Kondo effect Non-Fermi liquid |
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