YbRh2Si2: Quantum tricritical behavior in itinerant electron systems
arXiv:0710.3260 · doi:10.1143/JPSJ.77.093712
Abstract
We propose that proximity of the first-order transition manifested by the quantum tricritical point (QTCP) explains non-Fermi-liquid properties of YbRh2Si2. Here, at the QTCP, a continuous phase transition changes into first order at zero temperature. The non-Fermi-liquid behaviors of YbRh2Si2 are puzzling in two aspects; diverging ferromagnetic susceptibility at the antiferromagnetic transition and unconventional power-law dependence in thermodynamic quantities. These puzzles are solved by an unconventional criticality derived from our spin fluctuation theory for the QTCP.
4 pages, 3 figures
References in corpus (13)
- Fermi-liquid instabilities at magnetic quantum phase transitions
- Quantum Criticality in Heavy Fermion Metals
- The break up of heavy electrons at a quantum critical point
- Onset of antiferromagnetism in heavy fermion metals
- Hall-effect evolution across a heavy-fermion quantum critical point
- Multiple energy scales at a quantum critical point
- Metamagnetic Quantum Criticality
- Tricritical behavior in itinerant quantum ferromagnets
- Ferromagnetic quantum critical fluctuations in YbRh_2(Si_{0.95}Ge_{0.05})_2
- Quantum phase transitions of magnetic rotons
- Phase Bifurcation and Quantum Fluctuations in Sr3Ru2O7
- Hall Number in YbRh2Si2
- Tricritical Behavior in Charge-Order System
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