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Isomeric electronic states in concentric quantum rings

Maria Escartin, Jose; Malet, Francesc LU ; Emperador, Agusti and Marti, Pi (2009) In Physical Review B (Condensed Matter and Materials Physics) 79(24).
Abstract
We show that polarized few-electron concentric double quantum rings display localized states that are the quantum analog of classical equilibrium ones. These states have very similar energies but fairly different angular momenta, constituting a new physical realization of the isomeric states found in nuclear and molecular physics. Their fingerprint is a very soft mode in the infrared-absorption spectrum at nearly the dipole excitation energy of a rigidly rotating N-electron molecule. The yrast line and the infrared-absorption spectrum are discussed for N=4 and 6 electron configurations.
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
infrared spectra, localised states, quantum dots
in
Physical Review B (Condensed Matter and Materials Physics)
volume
79
issue
24
publisher
American Physical Society
external identifiers
  • wos:000267699700093
  • scopus:67650142084
ISSN
1098-0121
DOI
10.1103/PhysRevB.79.245317
language
English
LU publication?
yes
id
350aa858-b708-47f7-a1df-95937151d9a8 (old id 1462366)
date added to LUP
2009-08-20 12:26:59
date last changed
2017-01-01 05:39:09
@article{350aa858-b708-47f7-a1df-95937151d9a8,
  abstract     = {We show that polarized few-electron concentric double quantum rings display localized states that are the quantum analog of classical equilibrium ones. These states have very similar energies but fairly different angular momenta, constituting a new physical realization of the isomeric states found in nuclear and molecular physics. Their fingerprint is a very soft mode in the infrared-absorption spectrum at nearly the dipole excitation energy of a rigidly rotating N-electron molecule. The yrast line and the infrared-absorption spectrum are discussed for N=4 and 6 electron configurations.},
  author       = {Maria Escartin, Jose and Malet, Francesc and Emperador, Agusti and Marti, Pi},
  issn         = {1098-0121},
  keyword      = {infrared spectra,localised states,quantum dots},
  language     = {eng},
  number       = {24},
  publisher    = {American Physical Society},
  series       = {Physical Review B (Condensed Matter and Materials Physics)},
  title        = {Isomeric electronic states in concentric quantum rings},
  url          = {http://dx.doi.org/10.1103/PhysRevB.79.245317},
  volume       = {79},
  year         = {2009},
}