Electron spin resonance study on the 4 f honeycomb quantum magnet YbCl3

J Phys Condens Matter. 2023 Jul 25;35(42). doi: 10.1088/1361-648X/ace815.

Abstract

The local magnetic properties of Yb3+in the layered honeycomb material YbCl3were investigated by electron spin resonance on single crystals. For in-plane and out-of-plane field orientations theg-factor shows a clear anisotropy (g∥=2.97(8)andg⊥=1.53(4)), whereas the low temperature exchange coupling and the spin relaxation display a rather isotropic character. At elevated temperatures the contribution of the first excited crystal field level (21±2meV) dominates the spin relaxation.

Keywords: YbCl3; electron spin resonance; honeycomb; quantum magnet.