Magnetoluminescence from trion and biexciton in type-II quantum dot
<p>Abstract</p> <p>We theoretically investigate optical Aharonov-Bohm (AB) effects on trion and biexciton in the type-II semiconductor quantum dots, in which holes are localized near the center of the dot, and electrons are confined in a ring structure formed around the dot. Many-p...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2011-01-01
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| Series: | Nanoscale Research Letters |
| Online Access: | http://www.nanoscalereslett.com/content/6/1/351 |
| _version_ | 1797725054158503936 |
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| author | Okuyama Rin Eto Mikio Hyuga Hiroyuki |
| author_facet | Okuyama Rin Eto Mikio Hyuga Hiroyuki |
| author_sort | Okuyama Rin |
| collection | DOAJ |
| description | <p>Abstract</p> <p>We theoretically investigate optical Aharonov-Bohm (AB) effects on trion and biexciton in the type-II semiconductor quantum dots, in which holes are localized near the center of the dot, and electrons are confined in a ring structure formed around the dot. Many-particle states are calculated numerically by the exact diagonalization method. Two electrons in trion and biexciton are strongly correlated to each other, forming a Wigner molecule. Since the relative motion of electrons are frozen, the Wigner molecule behaves as a composite particle whose mass and charges are twice those of an electron. As a result, the period of AB oscillation for trion and biexciton becomes <it>h</it>/2<it>e </it>as a function of magnetic flux penetrating the ring. We find that the magnetoluminescence spectra from trion and biexciton change discontinuously as the magnetic flux increases by <it>h</it>/2<it>e</it>.</p> <p>PACS: 71.35.Ji, 73.21.-b, 73.21.La, 78.67.Hc</p> |
| first_indexed | 2024-03-12T10:25:40Z |
| format | Article |
| id | doaj.art-748522cf49c1461c9937f165780d4f8c |
| institution | Directory Open Access Journal |
| issn | 1931-7573 1556-276X |
| language | English |
| last_indexed | 2024-03-12T10:25:40Z |
| publishDate | 2011-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Nanoscale Research Letters |
| spelling | doaj.art-748522cf49c1461c9937f165780d4f8c2023-09-02T09:43:58ZengSpringerOpenNanoscale Research Letters1931-75731556-276X2011-01-0161351Magnetoluminescence from trion and biexciton in type-II quantum dotOkuyama RinEto MikioHyuga Hiroyuki<p>Abstract</p> <p>We theoretically investigate optical Aharonov-Bohm (AB) effects on trion and biexciton in the type-II semiconductor quantum dots, in which holes are localized near the center of the dot, and electrons are confined in a ring structure formed around the dot. Many-particle states are calculated numerically by the exact diagonalization method. Two electrons in trion and biexciton are strongly correlated to each other, forming a Wigner molecule. Since the relative motion of electrons are frozen, the Wigner molecule behaves as a composite particle whose mass and charges are twice those of an electron. As a result, the period of AB oscillation for trion and biexciton becomes <it>h</it>/2<it>e </it>as a function of magnetic flux penetrating the ring. We find that the magnetoluminescence spectra from trion and biexciton change discontinuously as the magnetic flux increases by <it>h</it>/2<it>e</it>.</p> <p>PACS: 71.35.Ji, 73.21.-b, 73.21.La, 78.67.Hc</p>http://www.nanoscalereslett.com/content/6/1/351 |
| spellingShingle | Okuyama Rin Eto Mikio Hyuga Hiroyuki Magnetoluminescence from trion and biexciton in type-II quantum dot Nanoscale Research Letters |
| title | Magnetoluminescence from trion and biexciton in type-II quantum dot |
| title_full | Magnetoluminescence from trion and biexciton in type-II quantum dot |
| title_fullStr | Magnetoluminescence from trion and biexciton in type-II quantum dot |
| title_full_unstemmed | Magnetoluminescence from trion and biexciton in type-II quantum dot |
| title_short | Magnetoluminescence from trion and biexciton in type-II quantum dot |
| title_sort | magnetoluminescence from trion and biexciton in type ii quantum dot |
| url | http://www.nanoscalereslett.com/content/6/1/351 |
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