Comment on "Zeeman-Driven Lifshitz Transition: A Model for the Experimentally Observed Fermi-Surface Reconstruction in YbRh2Si2"
arXiv:1207.0536 · doi:10.1103/PhysRevLett.111.139701
Abstract
In Phys. Rev. Lett. 106, 137002 (2011), A. Hackl and M. Vojta have proposed to explain the quantum critical behavior of YbRh2Si2 in terms of a Zeeman-induced Lifshitz transition of an electronic band whose width is about 6 orders of magnitude smaller than that of conventional metals. Here, we note that the ultra-narrowness of the proposed band, as well as the proposed scenario per se, lead to properties which are qualitatively inconsistent with the salient features observed in YbRh2Si2 near its quantum critical point.
3 pages
References in corpus (6)
- Quantum Criticality in Heavy Fermion Metals
- Multiple energy scales at a quantum critical point
- Fermi-surface collapse and dynamical scaling near a quantum critical point
- Zeeman-driven Lifshitz transition: A scenario for the Fermi-surface reconstruction in YbRh2Si2
- Comment on Zeeman-Driven Lifshitz Transition: A Model for the Experimentally Observed Fermi-Surface Reconstruction in YbRh2Si2 (A. Hackl and M. Vojta, Phys. Rev. Lett. 106, 137002 (2011))
- Reply to Comment by S. Friedemann et al. on "Zeeman-Driven Lifshitz Transition: A Model for the Experimentally Observed Fermi-Surface Reconstruction in YbRh2Si2"
Cited by in corpus (4)
- Grüneisen parameter studies on heavy fermion quantum criticality
- Magnetization study of the energy scales in YbRhSi under chemical pressure
- Tuning low-energy scales in YbRhSi by non-isoelectronic substitution and pressure
- Reply to Comment by S. Friedemann et al. on "Zeeman-Driven Lifshitz Transition: A Model for the Experimentally Observed Fermi-Surface Reconstruction in YbRh2Si2"