5 papers
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 à san 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, PaweÅ 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…