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

Preprint

21 August 1995

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/9508082

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.

Keywords

RECIPROCAL OPTICAL EFFECTS
ANTIFERROMAGNETIC
MICROSCOPIC MODEL
CR_2 O_3
COUPLE
O_3

All Related Versions

Version 1, 1995-08-21, ArXiv
Published version: Physical Review Letters, 75 (14), 2766.

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