Nonlinear spectroscopy of antiferromagnetic Cr2O3

15 April 1997

journal article
research article
Published by AIP Publishing in Journal of Applied Physics

Vol. 81 (8) , 4875-4877
https://doi.org/10.1063/1.364863

Abstract

Antiferromagnetic

{Cr}_{2} O_{3}

is investigated by nonlinear spectroscopy. A pronounced polarization dependence of the second harmonic spectrum was observed which is due to the interference of time-invariant and time-noninvariant contributions to the nonlinear signal. It can be used to visualize antiferromagnetic 180° domains with high resolution in a few minutes. Both spectroscopy and topography show that in the spin-flop phase the spins are oriented in the basal plane along a twofold axis.

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