Skyrmionic excitons

Article

关键词: FRACTIONAL QUANTUM HALL;    LANDAU-LEVEL;    ELECTRON-GAS;    EXCITATIONS;    INTEGER;    WELLS;    GAAS;    NU=1;   

DOI  :  10.1103/PhysRevB.56.R10052

来源: SCIE

【 摘 要 】

We investigate the properties of a Skyrmionic exciton consisting of a negatively charged Skyrmion bound to a mobile valence hole. A variational wave function is constructed that has the generalized total momentum P as a good quantum number. It is shown that the Skyrmionic exciton can have a larger binding energy than an ordinary magnetoexciton and should therefore dominate the photoluminescence spectrum in high-mobility quantum wells and heterojunctions where the electron-hole separation exceeds a critical value. The dispersion relation for the Skyrmionic exciton is discussed. [S0163-1829(97)52240-5].

【 授权许可】

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