Singlet-triplet transitions in highly correlated nanowire quantum dots
| dc.citation.epage | 840 | en_US |
| dc.citation.issue | 4 | en_US |
| dc.citation.spage | 837 | en_US |
| dc.citation.volume | 42 | en_US |
| dc.contributor.author | Chen, Y. T. | en_US |
| dc.contributor.author | Chao, C. C. | en_US |
| dc.contributor.author | Huang, S. Y. | en_US |
| dc.contributor.author | Tang, C. S. | en_US |
| dc.contributor.author | Cheng, S. J. | en_US |
| dc.contributor.department | 電子物理學系 | zh_TW |
| dc.contributor.department | Department of Electrophysics | en_US |
| dc.date.accessioned | 2014-12-08T15:17:30Z | |
| dc.date.available | 2014-12-08T15:17:30Z | |
| dc.date.issued | 2010-02-01 | en_US |
| dc.description.abstract | We consider a quantum dot embedded in a three-dimensional nanowire with tunable aspect ratio a. A configuration interaction theory is developed to calculate the energy spectra of the finite ID quantum dot systems charged with two electrons in the presence of magnetic fields B along the wire axis. Fruitful singlet-triplet transition behaviors are revealed and explained in terms of the competing exchange interaction, correlation interaction, and spin-Zeeman energy. In the high aspect ratio regime, the singlet-triplet transitions are shown designable by tuning the parameters a and B. The transition also manifest the highly correlated nature of long nanowire quantum dots. (C) 2009 Elsevier B.V. All rights reserved. | en_US |
| dc.identifier.doi | 10.1016/j.physe.2009.11.084 | en_US |
| dc.identifier.issn | 1386-9477 | en_US |
| dc.identifier.journal | PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | en_US |
| dc.identifier.uri | http://dx.doi.org/10.1016/j.physe.2009.11.084 | en_US |
| dc.identifier.uri | https://ir.lib.nycu.edu.tw/handle/11536/12678 | |
| dc.identifier.wosnumber | WOS:000276541200044 | |
| dc.language.iso | en_US | en_US |
| dc.subject | Nanowire quantum dot | en_US |
| dc.subject | Exchange | en_US |
| dc.subject | Correlation | en_US |
| dc.subject | Singlet-triplet transition | en_US |
| dc.title | Singlet-triplet transitions in highly correlated nanowire quantum dots | en_US |
| dc.type | Article; Proceedings Paper | en_US |