153 citations · 1k across the 33 of their papers we have counts for
10 papers · 1 filter
Dynamic heterogeneity in the self-induced spin glass state of elemental neodymium
L. Niggli, J. H. Strik, Z. Liu +4
Spin glasses are magnetic materials exhibiting numerous magnetization patterns, that randomly vary both in real space and in time. To date, it is still not well understood what the…
Optical detection of 4-spin chiral interaction in a 2D honeycomb ferrimagnet
Bektur Murzaliev, Mikhail Katsnelson, Mikhail Titov
Broken inversion symmetry of magnetic lattice is normally described by Lifshitz invariants in micromagnetic energy functional. Three exceptions are the lattices with T…
Electronic correlations arising from anti-Stoner spin excitations: an ab initio study of itinerant ferro- and antiferromagnet
S. Paischer, D. Eilmsteiner, M. I. Katsnelson +2
The anti-Stoner excitations are a spin-flips in which, effectively, an electron is promoted from a minority to a majority spin state, i.e., complementary to Stoner excitations and…
Phonon-induced renormalization of exchange interactions in metallic two-dimensional magnets
Danis I. Badrtdinov, Mikhail I. Katsnelson, Alexander N. Rudenko
The presence of spin-polarized charge carriers in metallic magnets provides a mechanism for spin-lattice interactions mediated by electron-phonon coupling. Here, we present a theor…
Semi-Dirac Fermions in a Topological Metal
Yinming Shao, Seongphill Moon, A. N. Rudenko +14
Topological semimetals with massless Dirac and Weyl fermions represent the forefront of quantum materials research. In two dimensions (2D), a peculiar class of fermions that are ma…
One-particle and excitonic band structure in cubic Boron Arsenide
Swagata Acharya, Dimitar Pashov, Mikhail I Katsnelson +1
Cubic BAs has received recent attention for its large electron and hole mobilities and large thermal conductivity. This is a rare and much desired combination in semiconductor indu…
Non-local correlation effects due to virtual spin-flip processes in itinerant electron ferromagnets
S. Paischer, G. Vignale, M. I. Katsnelson +2
We present an ab initio method for eletcronic structure calculations, which accounts for the interaction of electrons and magnons in ferromagnets. While it is based on a many body…
Magnon activation by hot electrons via non-quasiparticle states
S. Brener, B. Murzaliev, M. Titov +1
We consider the situation when a femtosecond laser pulse creates a hot electron state in half-metallic ferromagnet (e. g. ferromagnetic semiconductor) on a picosecond timescale but…
Importance of correlation effects in hcp iron revealed by a pressure-induced electronic topological transition
K. Glazyrin, L. V. Pourovskii, L. Dubrovinsky +17
We discover that hcp phases of Fe and Fe0.9Ni0.1 undergo an electronic topological transition at pressures of about 40 GPa. This topological change of the Fermi surface manifests i…
Correlation effects in the electronic structure of Mn molecular magnet
D. W. Boukhvalov, L. I. Vergara, V. V. Dobrovitski +5
We present joint theoretical-experimental study of the correlation effects in the electronic structure of (pyH)[MnOCl(OAc)]2MeCN molecular magnet (Mn…