Coherent Properties of a Magnetoexciton Condensate in a Hall Dielectric

Shear interferometry is used to study the coherent properties of a dense ensemble of triplet cyclotron magnetoexcitons in a quantum Hall dielectric near a filling factor of . Compared to the gas of uncondensed magnetoexcitons, the magnetoexciton condensate formed at fairly low temperatures by nonres...

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Bibliographic Details
Published inBulletin of the Russian Academy of Sciences. Physics Vol. 86; no. 4; pp. 380 - 385
Main Authors Gorbunov, A. V., Timofeev, V. B.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.04.2022
Springer Nature B.V
Subjects
Coherence length
Condensates
Cyclotrons
Hadrons
Heavy Ions
Low temperature
Magnetic properties
Nuclear Physics
Photoexcitation
Physics
Physics and Astronomy
Shear interferometry
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Summary:Shear interferometry is used to study the coherent properties of a dense ensemble of triplet cyclotron magnetoexcitons in a quantum Hall dielectric near a filling factor of . Compared to the gas of uncondensed magnetoexcitons, the magnetoexciton condensate formed at fairly low temperatures by nonresonant photoexcitation is found to have an increased degree of coherence. Its transverse coherence length reaches ~10 µm in order of magnitude. The fraction of the condensate can be as high as 20% of the total number of triplet magnetoexcitons.
ISSN:1062-8738
1934-9432
DOI:10.3103/S1062873822040104