Universal behavior of $\rm CePd_{1-x}Rh_x$ Ferromagnet at Quantum Critical Point
| dc.creator | Shaginyan, V. R. | |
| dc.creator | Popov, K. G. | |
| dc.creator | Artamonov, S. A. | |
| dc.date | 2007-03-18 | |
| dc.date.accessioned | 2026-07-07T08:19:07Z | |
| dc.date.available | 2026-07-07T08:19:07Z | |
| dc.description | The heavy-fermion metal $\rm CePd_{1-x}Rh_x$ can be tuned from ferromagnetism at $x=0$ to non-magnetic state at some critical concentration $x_c$. The non-Fermi liquid behavior (NFL) at $x\simeq x_c$ is recognized by power low dependence of the specific heat $C(T)$ given by the electronic contribution, magnetic susceptibility $χ(T)$ and volume expansion coefficient $α(T)$ at low temperatures: $C/T\proptoχ(T)\proptoα(T)/T\propto1/\sqrt{T}$. We also demonstrate that the behavior of normalized effective mass $M^*_N$ observed in $\rm CePd_{1-x}Rh_x$ at $x\simeq 0.8$ agrees with that of $M^*_N$ observed in paramagnetic $\rm CeRu_2Si_2$ and conclude that these alloys exhibit the universal NFL thermodynamic behavior at their quantum critical points. We show that the NFL behavior of $\rm CePd_{1-x}Rh_x$ can be accounted for within frameworks of quasiparticle picture and fermion condensation quantum phase transition, while this alloy exhibits a universal thermodynamic NFL behavior which is independent of the characteristic features of the given alloy such as its lattice structure, magnetic ground state, dimension etc. | |
| dc.description | 5 pages, 3 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0703474 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0703474 | |
| dc.identifier | JETP Lett. 85, 398 (2007). | |
| dc.identifier | doi:10.1134/S0021364007080115 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/134661 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Universal behavior of $\rm CePd_{1-x}Rh_x$ Ferromagnet at Quantum Critical Point | |
| dc.type | text |