Influence of excited Landau levels on a two-dimensional electron–hole system in a strong perpendicular magnetic field

Autor:	E. V. Dumanov, S. A. Moskalenko, Vitalie Boţan, Ig. V. Podlesny, P.I. Khadzhi, Michael A. Liberman
Rok vydání:	2006
Předmět:	Physics Condensed matter physics Quantum oscillations General Chemistry Landau quantization Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Condensed Matter Physics Quantum number Shubnikov–de Haas effect Quantum state Excited state Materials Chemistry Perturbation theory Ground state
Zdroj:	Solid State Communications. 140:236-239
ISSN:	0038-1098
DOI:	10.1016/j.ssc.2006.08.010
Popis:	The study of the quantum states of a two-dimensional electron-hole system in a strong perpendicular magnetic field is carried out with special attention to the influence of virtual quantum transitions of interacting particles between the Landau levels. These virtual quantum transitions from the lowest Landau levels to excited Landau levels with arbitrary quantum numbers n and m and their reversion to the lowest Landau levels in second order perturbation theory result in an indirect attraction between the particles. The influence of the indirect interaction on the magnetoexciton ground state, on the chemical potential of the Bose-Einstein condensed magnetoexcitons, and on the ground state energy of the metallic-type electron-hole liquid is investigated in the Hartree-Fock approximation. The coexistence of different phases is suggested.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::eae278114620fa6a5e97b2da386f4df9 https://doi.org/10.1016/j.ssc.2006.08.010 Zobrazit plný text záznamu Full Text from ScienceDirect