Long-Lived Magnetoexcitons and Two-Dimensional Magnetofermionic Condensate in GaAs/AlGaAs Heterostructure

L. V. Kulik; A. V. Gorbunov; A. S. Zhuravlev; V. B. Timofeev; I. V. Kukushkin

doi:10.1134/S1063782618050160

Long-Lived Magnetoexcitons and Two-Dimensional Magnetofermionic Condensate in GaAs/AlGaAs Heterostructure

Авторлар: Kulik L.V.¹, Gorbunov A.V.¹, Zhuravlev A.S.¹, Timofeev V.B.¹, Kukushkin I.V.¹
Мекемелер:
1. Institute of Solid State Physics
Шығарылым: Том 52, № 5 (2018)
Беттер: 575-578
Бөлім: XXV International Symposium “Nanostructures: Physics and Technology”, Saint Petersburg, Russia, June 26–30, 2017. Excitons in Nanostructures
URL: https://journals.rcsi.science/1063-7826/article/view/203051
DOI: https://doi.org/10.1134/S1063782618050160
ID: 203051

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Аннотация

Excitation of long-lived triplet magnetoexcitons in a Hall insulator (filling factor ν = 2) with a high mobility of electrons, at low temperatures, Т < 1 K, enabled to discover a new collective state − magnetofermionic condensate, that interacts coherently with an external electromagnetic field, exhibits superradiant properties and, owing to its low viscosity, spreads over the surface of the two-dimensional structure for macroscopically large distances.