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We have studied photoluminescence of α-MnSe in the antiferromagnetic and paramagnetic phases. Two broad, possibly multi-component emission bands centred at about 1.53 and 1.66eV are observed at 20K. The frequencies and intensities of these bands show step-like shift in the vicinity of T N . On the basis of difference in peak energies at T=1.8K and T N the d–p–d superexchange interaction...
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