5 papers · 1 filter
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…
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…
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…
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…
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…