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- W1998861702 abstract "The magnetic circular dichroism (MCD) properties of antiferromagnetic MnF2 in the 4T1(4G) region have been studied. We show that MCD is a useful technique in furthering our understanding of the spectra of these materials, particularly when complex assisted transitions are involved. Out of the complex band absorption, only a weak electric dipole feature at 18 536 cm−1 and the one-magnon sideband region exhibit magnetic circular dichroism. We present conclusive evidence that the weak electric dipole transition is a two-magnon sideband of the pure electronic line E2 in this manifold. The position and temperature dependence are in good agreement with other two magnon experimental data. The MCD splitting also yields an effective g factor for the two-magnon sideband which is in good agreement with existing data. We conclude that this three-center excitation is caused by a zone-center exciton plus two X2 zone-edge magnons. Fitting the observed MCD signal from the one-magnon sideband region to a calculated line shape gives us an estimate of the effective g factor for zone-edge magnons in MnF2." @default.
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- W1998861702 date "1971-03-15" @default.
- W1998861702 modified "2023-09-27" @default.
- W1998861702 title "Magnetic Circular Dichroism in Antiferromagnetic MnF<sub>2</sub>" @default.
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- W1998861702 doi "https://doi.org/10.1063/1.1660386" @default.
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