Exciton self-localization in the quasi-two-dimensional antiferromagnet NaMnCl3
R. Ya. BronPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSRV. V. EremenkoPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSRÉ. V. MalyushkinPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR
ABI
Аннотация
The luminescence and excitation spectra for crystalline NaMnCl3 are reported for the temperature interval 4.2–100 °K. The observed spectral properties are explained on the basis of exciton selflocalization. In magnetic fields a delocalization of the excitons is observed, due to the increase of the noncollinearity of the magnetic structure of the crystal.
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