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Metastable bound states of the two-dimensional bimagnetoexcitons with triplet-triplet spin structures in the lowest landau levels approximation

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dc.contributor.author MOSKALENKO, S. A.
dc.contributor.author KHADZHI, P. I.
dc.contributor.author PODLESNY, I. V.
dc.contributor.author DUMANOV, E. V.
dc.contributor.author ZUBAC, I. A.
dc.contributor.author LIBERMAN, M. A.
dc.date.accessioned 2020-05-04T09:41:45Z
dc.date.available 2020-05-04T09:41:45Z
dc.date.issued 2018
dc.identifier.citation MOSKALENKO, S. A., KHADZHI, P. I., PODLESNY, I. V. et al. Metastable bound states of the two-dimensional bimagnetoexcitons with triplet-triplet spin structures in the lowest landau levels approximation. In: Telecomunicaţii, Electronică şi Informatică: proc. of the 6th intern. conf., May 24-27, 2018. Chişinău, 2018, pp. 72-76. ISBN 978-9975-45-540-4. en_US
dc.identifier.isbn 978-9975-45-540-4
dc.identifier.uri http://repository.utm.md/handle/5014/8056
dc.description.abstract The possible existence of the bound states of the interacting two-dimensional (2D) magnetoexcitons with in-plane opposite wave vectors, as well as with antiparallel electric dipole moments oriented perpendicularly to the corresponding wave vectors was investigated in the lowest Landau levels approximation. Two definite spin structures of the two electrons and of the two holes forming the molecule were taken into account. One of them is the singlet-singlet structure in which the spins of two electrons and the effective spins of two holes separately form singlet states. Another one is the triplet-triplet structure. The variational wave functions describing the relative motion of two magnetoexcitons in the frame of the molecule depend on the modulus k in the forms of the ring and of the bell in momentum representation. It was shown that in four spinorbital variants the bound states of the 2D bimagnetoexciton in the lowest Landau levels approximation do not exist. Instead of them in the ring configuration and triplet-triplet spin structure a metastable bound state with an activation barrier comparable with the double ionization potential of the magnetoexciton was revealed. The role of the dipole-dipole interaction in the formation of the bound states is discussed. en_US
dc.language.iso ro en_US
dc.publisher Tehnica UTM en_US
dc.rights Attribution-NonCommercial-NoDerivs 3.0 United States *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/us/ *
dc.subject semiconductors en_US
dc.subject excitons en_US
dc.subject magnetic fields en_US
dc.title Metastable bound states of the two-dimensional bimagnetoexcitons with triplet-triplet spin structures in the lowest landau levels approximation en_US
dc.type Article en_US


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