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pro vyhledávání: '"Leonid Butov"'
Autor:
Leonid Butov
Publikováno v:
MRS Bulletin. 45:380-386
An indirect exciton (IX), also known as an interlayer exciton, is a bound pair of an electron and a hole confined in spatially separated layers. Due to their long lifetimes, IXs can cool below the temperature of quantum degeneracy. This provides an o
Autor:
D. J. Choksy, S. Hu, Dmitri E. Nikonov, L. H. Fowler-Gerace, E. V. Calman, Leonid Butov, A. K. Geim, Ian A. Young, Artem Mishchenko
Publikováno v:
Nano Letters. 20:1869-1875
Indirect excitons (IX) in semiconductor heterostructures are bosons, which can cool below the temperature of quantum degeneracy and can be effectively controlled by voltage and light. IX quantum Bose gases and IX devices were explored in GaAs heteros
Autor:
J. R. Leonard, Leonid Butov, Michael M. Fogler, Dmitri E. Nikonov, Chao Xu, Ian A. Young, Chelsey Dorow
Publikováno v:
Nano Letters. 19:5373-5379
An indirect exciton is a bound state of an electron and a hole in spatially separated layers. Two-dimensional indirect excitons can be created optically in heterostructures containing double quantum wells or atomically thin semiconductors. We study t
Autor:
Alexander High, Aaron Hammack, Lun-Hui Hu, J. R. Leonard, K. L. Campman, Arthur C. Gossard, Leonid Butov, Congjun Wu
Publikováno v:
Nature Communications
Nature Communications, Vol 12, Iss 1, Pp 1-6 (2021)
Nature Communications, Vol 12, Iss 1, Pp 1-6 (2021)
Interference patterns provide direct measurement of coherent propagation of matter waves in quantum systems. Superfluidity in Bose–Einstein condensates of excitons can enable long-range ballistic exciton propagation and can lead to emerging long-sc
Autor:
Congjun Wu, Alexander High, Aaron Hammack, Leonid Butov, Lun-Hui Hu, Arthur C. Gossard, K. L. Campman, J. R. Leonard
Publikováno v:
Conference on Lasers and Electro-Optics.
We present a new mechanism, the moiré effect, which leads to the appearance of dislocations in interference patterns. Remote interference dislocations in condensate of indirect excitons originate from the moiré effect and evidence exciton superflui
Publikováno v:
Conference on Lasers and Electro-Optics.
We studied both experimentally and theoretically attractive dipolar interaction in bilayers of indirect excitons (IXs) with built-in dipole moments and found monotonic IX energy reduction with density and spatial attraction between IX clouds.
Indirect excitons (IXs), also known as interlayer excitons, can form the medium for excitonic devices whose operation is based on controlled propagation of excitons. A proof of principle for excitonic devices was demonstrated in GaAs heterostructures
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::244f3e8693d7ef69c60769bff225c051
Publikováno v:
Conference on Lasers and Electro-Optics.
We realize long-range propagation of indirect excitons in a MoSe2/WSe2 heterostructure. The data show that the long-range propagation of indirect excitons is possible in van der Waals heterostructures with the predicted moiré superlattice potentials
We explore attractive dipolar interaction in indirect excitons (IXs). For one layer of IXs in a single pair of coupled quantum wells (CQW), the out-of-plane IX electric dipoles lead to repulsive dipolar interaction between IXs. The attractive dipolar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cb8364d10cc7119fb9a157d333c4c982
http://arxiv.org/abs/2011.06084
http://arxiv.org/abs/2011.06084
Publikováno v:
Conference on Lasers and Electro-Optics.
We observe transport of indirect excitons over a distance greater than 10 pm in a MoSe2/WSe2 heterostructure. The transport is switched on or off by gate voltage and is observed up to 40 K.