Nonreciprocal Optical Reflection of the Uniaxial Antiferromagnet Mn
- 23 June 1986
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 56 (25) , 2752-2754
- https://doi.org/10.1103/physrevlett.56.2752
Abstract
Microwave reflectivity measurements in Voigt geometry were performed on a polished surface of Mn. We observed nonreciprocal behavior in the reflectivity with respect to the magnetic field reversal. The nonreciprocal behavior of the antiferromagnet's reflectivity gives clear evidence for the existence of nonreciprocal dipolar antiferromagnetic surface spin-wave excitations. The results are quantitatively explained. They give very accurate values for antiferromagnetic resonance and spin-wave damping.
Keywords
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