Universal low-temperature behavior of the CePd_{1-x}Rh_x ferromagnet

Abstract

The heavy-fermion metal CePd_{1-x}Rh_x evolves from ferromagnetism at x=0 to a non-magnetic state at some critical concentration x_c. Utilizing the quasiparticle picture and the concept of fermion condensation quantum phase transition (FCQPT), we address the question about non-Fermi liquid (NFL) behavior of ferromagnet CePd_{1-x}Rh_x and show that it coincides with that of both antiferromagnet YbRh_2(Si_{0.95}Ge_{0.05})_2 and paramagnet CeRu_2Si_2 and CeNi_2Ge_2. We conclude that the NFL behavior being independent of the peculiarities of specific alloy, is universal, while numerous quantum critical points assumed to be responsible for the NFL behavior of different HF metals can be well reduced to the only quantum critical point related to FCQPT.

arXiv comment6 pages, 7 figures

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Cited by in corpus (5)

• Universal Behavior of Two-Dimensional 3He at Low Temperatures
• Strongly correlated Fermi-systems: non-Fermi liquid behavior, quasiparticle effective mass and their interplay
• Energy scales and magnetoresistance at a quantum critical point
• Energy scales and the non-Fermi liquid behavior in YbRh2Si2
• Quantum critical point in high-temperature superconductors