TY  - INPR
A1  - Kocsis, Vilmos
A1  - Kaib, David A. S.
A1  - Riedl, Kira Marina
A1  - Gass, Sebastian
A1  - Lampen-Kelley, Paula
A1  - Mandrus, David G.
A1  - Nagler, Stephen E.
A1  - Pérez Rodriguez, Nicolás
A1  - Nielsch, Kornelius
A1  - Büchner, Bernd
A1  - Wolter, Anja U. B.
A1  - Valentí, Roser
T1  - Investigation of the magnetoelastic coupling anisotropy in the Kitaev material α-RuCl3
T2  - arXiv
N2  - The Kitaev material α-RuCl3 is among the most prominent candidates to host a quantum spin-liquid state endowed with fractionalized excitations. Recent experimental and theoretical investigations have separately revealed the importance of both the magnetoelastic coupling and the magnetic anisotropy, in dependence of the applied magnetic field direction. In this combined theoretical and experimental research, we investigate the anisotropic magnetic and magnetoelastic properties for magnetic fields applied along the main crystallographic axes as well as for fields canted out of the honeycomb plane. We found that the magnetostriction anisotropy is unusually large compared to the anisotropy of the magnetization, which is related to the strong magnetoelastic Γ′˜-type coupling in our \textit{ab-initio} derived model. We observed large, non-symmetric magnetic anisotropy for magnetic fields canted out of the honeycomb ab-plane in opposite directions, namely towards the +c∗ or −c∗ axes, respectively. The observed directional anisotropy is explained by considering the relative orientation of the magnetic field with respect to the co-aligned RuCl6 octahedra. Magnetostriction measurements in canted fields support this non-symmetric magnetic anisotropy, however these experiments are affected by magnetic torque effects. Comparison of theoretical predictions with experimental findings allow us to recognize the significant contribution of torque effects in experimental setups where α-RuCl3 is placed in canted magnetic fields.
Y1  - 2022
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/82454
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-824549
UR  - https://arxiv.org/abs/2202.07102v1
IS  - 2202.07102 Version 1
PB  - arXiv
ER  -