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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Article number | 035322 |
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<mark>Journal publication date</mark> | 15/07/2003 |
<mark>Journal</mark> | Physical review B |
Issue number | 3 |
Volume | 68 |
Number of pages | 8 |
Pages (from-to) | - |
Publication Status | Published |
<mark>Original language</mark> | English |
We consider the spin interaction in the Hamiltonian for the positively charged exciton X+, determining the spin states and Zeeman-level diagrams for X+ in which the heavy- and light-hole bands are degenerate and nondegenerate. The former case results in an X+ with quintuplet and septet states in addition to the singlet and triplet states that are also observed for the negatively charged exciton X-. When the heavy- and light-hole bands are split X+ can comprise two heavy holes, two light holes, or a heavy and a light hole. The heavy-hole X+ Zeeman-level diagram is found to be completely analogous to that of X-, while the light-hole X+ has more optical transitions and a different Zeeman splitting in photoluminescence. X+ consisting of a heavy and a light hole has no coupled hole states, and is truly a heavy- (or light-) hole exciton plus a light (heavy) hole.