31 citations · 144 across the 9 of their papers we have counts for
9 papers
Doping-induced band shifts and Lifshitz transitions in heavy-fermion metals
Adel Benlagra, Matthias Vojta
For some heavy-fermion compounds, it has been suggested that a Fermi-surface-changing Lifshitz transition, which can be driven, e.g., by varying an applied magnetic field, occurs i…
Finite-temperature spectra and quasiparticle interference in Kondo lattices: From light electrons to coherent heavy quasiparticles
Adel Benlagra, Thomas Pruschke, Matthias Vojta
Recent advances in scanning tunneling spectroscopy performed on heavy-fermion metals provide a window onto local electronic properties of composite heavy-electron quasiparticles. H…
Two-channel pseudogap Kondo and Anderson models: Quantum phase transitions and non-Fermi liquids
Imke Schneider, Lars Fritz, Frithjof B. Anders +2
We discuss the two-channel Kondo problem with a pseudogap density of states, $ρ(\w)\propto|\w|^r$, of the bath fermions. Combining both analytical and numerical renormalization gro…
Preformed heavy-electrons at the Quantum Critical Point in heavy fermion compounds
Minh-Tien Tran, A. Benlagra, C. Pépin +1
The existence of multiple energy scales is regarded as a signature of the Kondo breakdown mechanism for explaining the quantum critical behavior of certain heavy fermion compounds,…
Kondo lattices with inequivalent local moments: Competitive vs. co-operative Kondo screening
Adel Benlagra, Lars Fritz, Matthias Vojta
While standard heavy fermion metals feature a single spin-1/2 local moment per unit cell, more complicated systems with multiple distinct local moments have been synthesized as wel…
Luttinger-Ward functional approach in the Eliashberg framework : A systematic derivation of scaling for thermodynamics near a quantum critical point
A. Benlagra, K. -S. Kim, C. Pépin
Scaling expressions for the free energy are derived, using the Luttinger-Ward (LW) functional approach in the Eliashberg framework, for two different models of quantum critical poi…