3 papers
cond-mat.str-el2021
In-situ electric field control of THz non-reciprocal directional dichroism in the multiferroic BaCoGeO
J. Vít, J. Viirok, L. Peedu +11
Non-reciprocal directional dichroism, also called the optical-diode effect, is an appealing functional property inherent to the large class of non-centrosymmetric magnets. However,…
cond-mat.str-el2020
Degenerate manifolds, helimagnets, and multi- chiral phases in the classical Heisenberg antiferromagnet on the face-centered-cubic lattice
Péter Balla, Yasir Iqbal, Karlo Penc
We present a detailed study of the ground state phase diagram of the classical frustrated Heisenberg model on the face-centered-cubic lattice. By considering exchange interactions…
cond-mat.str-el2019
Affine lattice construction of spiral surfaces in classical Heisenberg models
Péter Balla, Yasir Iqbal, Karlo Penc
Frustration in classical spin models can lead to degenerate ground states without long range order. In reciprocal space, these degeneracies appear as manifolds of wave vectors, the…