High-pressure study of non-Fermi liquid and spin-glass-like behavior in CeRhSn.
We present measurements of the temperature dependence of the electrical resistivity ρ(T) of CeRhSn up to ~27 kbar. At low temperatures, ρ(T) varies linearly with T for all pressures, indicating non-Fermi liquid behavior. Below Tf ~ 6 K, ρ(T) deviates from a linear dependence. We found that the low-T feature centered at T = Tf shows a pressure dependence ∂Tf/∂P ≈ 30 mK kbar−1 which is typical of canonical spin glasses. This interplay between spin-glass-like and non-Fermi liquid behavior was observed in both CeRhSn and a Ce0.9La0.1RhSn alloy.
Department of Physics, University of California, San Diego, La Jolla, CA 92093, USA. diego.zocco@kit.edu
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Zocco
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Slebarski
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D002586:Cesium / Q000737:chemistry*; D017097:Electric Impedance; D005898:Glass / Q000737:chemistry*; D011312:Pressure; D011789:Quantum Theory; D012238:Rhodium / Q000737:chemistry*; D013696:Temperature; D014001:Tin / Q000737:chemistry*
D002586:Cesium; D014001:Tin; D012238:Rhodium