Metastable bound states of the quasi-bimagnetoexcitons in the lowest Landau levels approximation

Abstract

Four different spin structures of two electrons and of two holes situated on the lowest Landau levels (LLLs) are taken into account to investigate possible bound states of the two-dimensional magnetic biexciton formed of two magnetoexcitons with opposite wave vectors and antiparallel dipole moments. The singlet and triplet states of the spins of two electrons and of two holes separately, as well as of two para- and two ortho-magnetoexcitons are considered. The general expressions describing the binding energy of the bound states and the normalization conditions characterized by the effective spin parameter for the corresponding wave functions are derived. The most favorable of the four considered spin configurations happened to be the triplet-triplet spin structure of two electrons and of two holes. In its frame a metastable bound state with activation barrier comparable with two ionization potentials of the magnetoexciton is revealed .

arXiv comment25 pages, 4 figures

References in corpus (8)

• Dynamically generated resonances from the vector octet-baryon octet interaction
• Excitations from Filled Landau Levels in Graphene
• Bose-Einstein condensation and Superfluidity of magnetoexcitons in Graphene
• Interaction potential between dynamic dipoles: polarized excitons in strong magnetic fields
• Collective properties of magnetobiexcitons in quantum wells' and graphene superlattices
• Interaction and dynamical binding of spin waves or excitons in quantum Hall systems
• Effects of Rashba spin-orbit coupling, Zeeman splitting and gyrotropy in two-dimensional cavity polaritons under the influence of the Landau quantization
• Metastable bound states of the two-dimensional bi-magnetoexcitons in the lowest Landau levels approximation