Issue |
EPL
Volume 95, Number 2, July 2011
|
|
---|---|---|
Article Number | 27007 | |
Number of page(s) | 6 | |
Section | Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties | |
DOI | https://doi.org/10.1209/0295-5075/95/27007 | |
Published online | 04 July 2011 |
Supersolidity in electron-hole bilayers with a large density imbalance
1
Cavendish Laboratory - JJ Thomson Avenue, Cambridge, CB3 0HE, UK
2
Universidad Autónoma de Madrid - Madrid 28049, Spain
Received:
27
January
2011
Accepted:
6
June
2011
We consider an electron-hole bilayer in the limit of extreme density imbalance, where a single particle in one layer interacts attractively with a Fermi liquid in the other parallel layer. Using an appropriate variational wave function for the dressed exciton, we provide strong evidence for the existence of the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) phase in electron-hole bilayers with a large density imbalance. Furthermore, within this unusual limit of FFLO, we find that a dilute gas of minority particles forms excitons that condense into a two-dimensional “supersolid”.
PACS: 73.21.-b – Electron states and collective excitations in multilayers, quantum wells, mesoscopic, and nanoscale systems / 73.20.Mf – Collective excitations (including excitons, polarons, plasmons and other charge-density excitations) / 67.80.K- – Other supersolids
© EPLA, 2011
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.