Diamagnetic and paramagnetic shifts in self-assembled InAs lateral quantum dot molecules
| Author(s) | Zhou, Xinran | |
| Author(s) | Royo, Miquel | |
| Author(s) | Liu, Weiwen | |
| Author(s) | Lee, Jihoon H. | |
| Author(s) | Salamo, Gregory J. | |
| Author(s) | Climente, Juan I. | |
| Author(s) | Doty, Matthew F. | |
| Ordered Author | Xinran Zhou, Miquel Royo, Weiwen Liu, Jihoon H. Lee, Gregory J. Salamo, Juan I. Climente, and Matthew F. Doty | |
| UD Author | Doty, Matthew F. | en_US |
| Date Accessioned | 2016-06-28T14:32:13Z | |
| Date Available | 2016-06-28T14:32:13Z | |
| Copyright Date | Copyright ©2015 American Physical Society | en_US |
| Publication Date | 2015-05-19 | |
| Description | Publisher's PDF | en_US |
| Abstract | We uncover the underlying physics that explains the energy shifts of discrete states of individual InAs lateral quantum dot molecules (LQDMs) as a function of magnetic fields applied in the Faraday geometry. We observe that ground states of the LQDM exhibit a diamagnetic shift while excited states exhibit a paramagnetic shift. We explain the physical origin of the transition between these two behaviors by analyzing the molecular exciton states with effective mass calculations. We find that charge carriers in delocalized molecular states can become localized in single QDs with increasing magnetic field. We further show that the net effects of broken symmetry of the molecule and Coulomb correlation lead to the paramagnetic response. | en_US |
| Department | University of Delaware. Department of Materials Science and Engineering. | en_US |
| Citation | Zhou, Xinran, et al. "Diamagnetic and paramagnetic shifts in self-assembled InAs lateral quantum dot molecules." Physical Review B 91.20 (2015): 205427. | en_US |
| DOI | 10.1103/PhysRevB.91.205427 | en_US |
| ISSN | 2469-9950 ; e- 2469-9969 | en_US |
| URL | http://udspace.udel.edu/handle/19716/17986 | |
| Language | en_US | en_US |
| Publisher | American Physical Society | en_US |
| dc.rights | Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. | en_US |
| dc.source | Physical Review B | en_US |
| dc.source.uri | http://journals.aps.org/prb/ | en_US |
| Title | Diamagnetic and paramagnetic shifts in self-assembled InAs lateral quantum dot molecules | en_US |
| Type | Article | en_US |
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