Abstract
A fine structure of the optical absorption spectrum of antiferromagnetic NaMnCl3 was measured around 23800 cm−1 at temperatures in the range 1.8–50 K in magnetic fields up to 200 kOe. The fact that the intralayer ferromagnetic interaction in the crystal possessing a layered magnetic structure is stronger than the interlayer antiferromagnetic interaction leads to the formation of intensive hot exciton-magnon absorption bands. The special features of the exciton-magnon band structure in the crystal are connected with the special features of magnon dispersion and density of exciton-magnon states.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 10, pp. 23–28, October, 2004.
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Popov, E.A. Fine structure of the light absorption spectrum of antiferromagnetic NaMnCl3 . Russ Phys J 47, 988–994 (2004). https://doi.org/10.1007/s11182-005-0012-6
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DOI: https://doi.org/10.1007/s11182-005-0012-6