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Polarization-dependent photoluminescence-excitation spectra of one-dimensional exciton and continuum states in T-shaped quantum wires | | Hirotake Itoh
; Yuhei Hayamizu
; Masahiro Yoshita
; Hidefumi Akiyama
; Loren N. Pfeiffer
; Ken W. West
; Marzena H. Szymanska
; Peter B. Littlewood
; | | Date: |
17 Mar 2003 | | Subject: | Materials Science | cond-mat.mtrl-sci | | Affiliation: | 1 and 2), Hidefumi Akiyama (1 and 2), Loren N. Pfeiffer , Ken W. West , Marzena H. Szymanska and Peter B. Littlewood (2 and 3) ( ISSP, University of Tokyo, and CREST, JST Bell Laboratories, Lucent Technologies TCM group, Cavendish Laboratory, Unive | | Abstract: | We measured polarization-dependent photoluminescence-excitation spectra of highly uniform T-shaped quantum wires at 5 K. We attribute one peak to the 1D-exciton ground state and the continuous absorption band to 1D continuum states. These had similar polarization-dependences. We also observed some other peaks above the 1D-exciton ground state and attribute them to exciton states consisting of excited hole subbands. These results show good agreement with a model calculation of a single electron-hole pair in T-shaped geometry with exact diagonalizations of the Coulomb interaction. | | Source: | arXiv, cond-mat/0303322 | | Services: | Forum | Review | PDF | Favorites | |
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