15 citations · 48 across the 10 of their papers we have counts for
11 papers
Phonon angular momentum transfer torque
Verena Brehm, Daniel A. Bustamante Lopez, Shu Zhang +1
Angular momentum in solids is carried by (quasi)particles such as magnons, plasmons, and phonons, and coupling between these reservoirs enables diverse hybrid phenomena. Here, we i…
Ferron Hall effect: Transverse accumulation of polarization driven by thermal gradients in ferroelectrics
Daniel A. Bustamante Lopez, Verena Brehm, Dominik M. Juraschek
The phonon Hall effect describes the generation of a transverse heat current in response to a longitudinal thermal gradient in a magnetic field. Here, we theoretically demonstrate…
Atomistic theory of the phonon angular momentum Hall effect
Daniel A. Bustamante Lopez, Verena Brehm, Dominik M. Juraschek
The spin and orbital Hall effects convert longitudinal charge currents into transverse flows of electronic angular momentum. Here we develop an atomistic theory of the recently pro…
Thickness-dependent magnon spin transport in antiferromagnetic insulators: Crossover from quasi-three-dimensional to quasi-two-dimensional regimes
Mathias Åsan Myhre, Verena Brehm, Thomas Delvaux +2
Motivated by the recent observation of giant room-temperature magnon spin conductivity in an ultrathin ferromagnetic insulator [X.-Y. Wei et al., Nat. Mater. 21, 1352 (2022)], we i…
Stability of chiral magnon condensates in collinear antiferromagnetic insulators
Therese Frostad, Anne Louise Kristoffersen, Verena Brehm +3
Quasiequilibrium magnon Bose-Einstein condensates in ferromagnetic insulators have been a field of great interest, while condensation in antiferromagnetic systems has not yet been…
Intrinsic Spin Nernst Effect and Chiral Edge Modes in van der Waals Ferromagnetic Insulators: Dzyaloshinskii-Moriya vs. Kitaev Interactions
Verena Brehm, Paweł Sobieszczyk, Alireza Qaiumzadeh
The thermomagnetic Nernst effect and chiral edge states are key signatures of nontrivial topology and emerging Berry curvature in magnonic systems. Implementing atomistic spin simu…
Magnon dispersion and spin transport in CrCl bilayers under different strain-induced magnetic states
Verena Brehm, Stefan Stagraczynski, Jozef Barnas +2
Atomically-thin van der Waals magnetic materials offer exceptional opportunities to mechanically and electrically manipulate magnetic states and spin textures. The possibility of e…
Topological magnon gap engineering in van der Waals CrI ferromagnets
Verena Brehm, Pawel Sobieszczyk, Jostein Kløgetvedt +3
The microscopic origin of the topological magnon band gap in CrI ferromagnets has been a subject of controversy for years since two main models with distinct characteristics, i…
Micromagnetic study of spin transport in easy-plane antiferromagnetic insulators
Verena Brehm, Olena Gomonay, Serban Lepadatu +4
Magnon eigenmodes in easy-plane antiferromagnetic insulators are linearly polarized and are not expected to carry any net spin angular momentum. Motivated by recent nonlocal spin t…
A proposal for leaky integrate-and-fire neurons by domain walls in antiferromagnetic insulators
Verena Brehm, Johannes W. Austefjord, Serban Lepadatu +1
Brain-inspired neuromorphic computing is a promising path towards next generation analogue computers that are fundamentally different compared to the conventional von Neumann archi…
Magnonic Proximity Effect in Insulating Ferro- and Antiferromagnetic Trilayers
Verena Brehm, Martin Evers, Ulrike Ritzmann +1
The design of spin-transport based devices such as magnon transistors or spin valves will require multilayer systems composed of different magnetic materials with different physica…