Fizika Nizkikh Temperatur: Volume 31, Number 8-9 (August 2005), p. 1081-1088    ( to contents , go back )

Odd magnetic dichroism of linearly polarized light in the antiferromagnetic MnF2.

N.F. Kharchenko1, O.V. Miloslavskaya1, and A.A. Milner2

1B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine, 47 Lenin Ave., Kharkov 61103, Ukraine
E-mail: kharchenko@ilt.kharkov.ua

2Weizmann Institute of Science, Rehovot 76100, Israel
pos Анотація:

Received Jule 11, 2005

Abstract

In the two-sublattice tetragonal antiferromagnetic crystal of manganese fluoride the magnetic field-induced dichroism of linearly polarized light was revealed in geometry H||C4||Z with light propagating also along tetragonal crystal axis. The observed dichroism is odd to the sign of z-projection of magnetic field and to reversion of the sublattice magnetic moments of antiferromagnetic. The effect can be used for optical visualization of 180-degree (time-reversed)antiferromagnetic domains in MnF2.

PACS:
78.20.Ls - Magnetooptical effects
75.50.Ee - Antiferromagnetics
75.70.Kw - Domain structure (including magnetic bubbles)
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