A Microscopic Model of Non-Reciprocal Optical Effects in Cr_2 O_3

Abstract

This manuscript deals with the question "How does light couple to an antiferromagnetic order parameter"? For that we develop a microscopic model that explains the non-reciprocal optical effects in centrosymmetric Cr_2 O_3. It is shown that light can couple {\em directly} to the antiferromagnetic order parameter. This coupling is mediated by the spin-orbit interaction and involves an interplay between the breaking of inversion symmetry due to the antiferromagnetic order parameter and the trigonal field contribution to the ligand field at the Cr^{3+} ion.

arXiv commentAccepted for publication in Phys. Rev. Lett

Cited by in corpus (10)

• Giant modulation of optical nonlinearity by Floquet engineering
• Tuning the Ultrafast Spin Dynamics in Carrier-Density-Controlled Ferromagnets
• Direct imaging of antiferromagnetic domains and anomalous layer-dependent mirror symmetry breaking in atomically thin MnPS${}_3$
• Optical non-reciprocity in magnetic structures related to high-Tc superconductors
• Theory of Non-Reciprocal Optical Effects in Antiferromagnets: The Case Cr_2O_3
• Time-reversal symmetry in nonlinear optics
• Classification of second harmonic generation effect in magnetically ordered materials
• Symmetry Analysis of Second Harmonic Generation at Surfaces of Antiferromagnets
• Nonlinear Magneto-Optics of Fe Monolayers from first principles: Structural dependence and spin-orbit coupling strength
• Novel Nonreciprocal Acoustic Effects in Antiferromagnets