Excitons in argon cryocrystals
I. Ya. Fugol’Physicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR , KharkovE. V. SavchenkoPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR , KharkovYu. I. RybalkoPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR , KharkovA. N. OgurtsovPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR , Kharkov
ABI
Аннотация
The thermal evolution of the exciton luminescence spectrum of argon cryocrystals has been studied for the first time in the temperature range 5−40° K. A new maximum has been discovered in the exciton luminescence spectrum and has been identified as corresponding to forbidden transitions from the Γ′3/2 states. We discuss the necessity of taking into account the polariton effects in the luminescence of argon. Self-localized, single-site excitons are proven to exist in the bulk of the sample.
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