86 citations · 534 across the 16 of their papers we have counts for
6 papers · 1 filter
Kondo "underscreening" cloud: spin-spin correlations around a partially screened magnetic impurity
L. Borda, M. Garst, J. Kroha
We consider the spatial spin correlations around a partially screened spin-1 magnetic moment in a metal exhibiting the underscreened Kondo effect. We find that the underscreening o…
Echo of the Quantum Phase Transition of CeCuAu in XPS: Breakdown of Kondo Screening
M. Klein, J. Kroha, H. v. Loehneysen +2
We present an X-ray photoemission study of the heavy-fermion system CeCuAu across the magnetic quantum phase transition of this compound at temperatures above the singl…
Self-consistent study of Anderson localization in the Anderson-Hubbard model in two and three dimensions
Peter Henseler, Johann Kroha, Boris Shapiro
We consider the change in electron localization due to the presence of electron-electron repulsion in the \HA model. Taking into account local Mott-Hubbard physics and static scree…
Theory of Cherenkov radiation in periodic dielectric media: Emission spectrum
Christian Kremers, Dmitry N. Chigrin, Johann Kroha
The Cherenkov radiation is substantially modified in the presence of a medium with a nontrivial dispersion relation. We consider Cherenkov emission spectra of a point charge moving…
Signature of quantum criticality in photoemission spectroscopy at elevated temperature
M. Klein, A. Nuber, F. Reinert +3
A quantum phase transition (QPT) in a heavy-fermion (HF) compound may destroy the Fermi liquid groundstate. However, the conditions for this breakdown have remained obscure. We rep…
Bistability and mode interaction in microlasers
Sergei V. Zhukovsky, Dmitry N. Chigrin, Johann Kroha
We investigate the possibility of bistable lasing in microcavity lasers as opposed to bulk lasers. To that end, the dynamic behavior of a microlaser featuring two coupled, interact…