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Author |
Tadić, M.; Mlinar, V.; Peeters, F.M. |
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Title |
Multiband k\cdot p calculation of exciton diamagnetic shift in InP/InGaP self-assembled quantum dots |
Type |
A1 Journal article |
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Year |
2005 |
Publication |
Physica. E: Low-dimensional systems and nanostructures
T2 – 3rd International Conference on Quantum Dots (QD 2004), MAY 10-13, 2004, Max Bell Bldg Banff Ctr, Banff, Canada |
Abbreviated Journal |
Physica E |
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Volume |
26 |
Issue |
1-4 |
Pages |
212-216 |
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Keywords |
A1 Journal article; Engineering sciences. Technology; Condensed Matter Theory (CMT) |
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Abstract |
Exciton states in self-assembled InP/In0.49Ga0.51P quantum dots subject to magnetic fields up to 50T are calculated. Strain and band mixing are explicitly taken into account in the single-particle models of the electronic structure, while an exact diagonalization approach is adopted to compute the exciton states. Reasonably good agreement with magneto-photoluminescence measurements on InP self-assembled quantum dots is found. As a result of the polarization and angular momentum sensitive selection rules, the exciton ground state is dark. For in-plane polarized light, the magnetic field barely affects the exciton spatial localization, and consequently the exciton oscillator strength for recombination increases only slightly with increasing field. For z polarized light, a sharp increase of the oscillator strength beyond 30 T is found which is attributed to the enhanced s character of the relevant portion of the exciton wave function. (C) 2004 Elsevier B.V. All rights reserved. |
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Publisher |
North-Holland |
Place of Publication |
Amsterdam |
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Wos |
000227249000045 |
Publication Date |
2004-12-16 |
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ISSN |
1386-9477; |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
2.221 |
Times cited |
4 |
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Notes |
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Approved |
Most recent IF: 2.221; 2005 IF: 0.946 |
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Call Number ![sorted by Call Number field, descending order (down)](img/sort_desc.gif) |
UA @ lucian @ c:irua:103180 |
Serial |
2215 |
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Permanent link to this record |