skip to main content

DOE PAGESDOE PAGES

Title: Modulated phases of graphene quantum Hall polariton fluids

There is a growing experimental interest in coupling cavity photons to the cyclotron resonance excitations of electron liquids in high-mobility semiconductor quantum wells or graphene sheets. These media offer unique platforms to carry out fundamental studies of exciton-polariton condensation and cavity quantum electrodynamics in a regime, in which electron–electron interactions are expected to play a pivotal role. Here, focusing on graphene, we present a theoretical study of the impact of electron–electron interactions on a quantum Hall polariton fluid, that is a fluid of magneto-excitons resonantly coupled to cavity photons. We show that electron–electron interactions are responsible for an instability of graphene integer quantum Hall polariton fluids towards a modulated phase. We demonstrate that this phase can be detected by measuring the collective excitation spectra, which is often at a characteristic wave vector of the order of the inverse magnetic length.
Authors:
 [1] ;  [1] ;  [2] ;  [3]
  1. Istituto Nanoscienze (CNR-NANO), Pisa (Italy). NEST
  2. Univ. of Texas, Austin, TX (United States). Dept. of Physics
  3. Italian Inst. of Technology (IIT), Genoa (Italy). Graphene Labs
Publication Date:
Grant/Contract Number:
FG03-02ER45958; TBF1473; 696656
Type:
Accepted Manuscript
Journal Name:
Nature Communications
Additional Journal Information:
Journal Volume: 7; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Research Org:
Univ. of Texas, Austin, TX (United States); Istituto Nanoscienze (CNR-NANO), Pisa (Italy)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); Welch Foundation (United States); European Union (EU); Italian Inst. of Technology (IIT) (Italy)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; optical properties and devices; polaritons; quantum fluids and solids
OSTI Identifier:
1425795

Pellegrino, Francesco M. D., Giovannetti, Vittorio, MacDonald, Allan H., and Polini, Marco. Modulated phases of graphene quantum Hall polariton fluids. United States: N. p., Web. doi:10.1038/ncomms13355.
Pellegrino, Francesco M. D., Giovannetti, Vittorio, MacDonald, Allan H., & Polini, Marco. Modulated phases of graphene quantum Hall polariton fluids. United States. doi:10.1038/ncomms13355.
Pellegrino, Francesco M. D., Giovannetti, Vittorio, MacDonald, Allan H., and Polini, Marco. 2016. "Modulated phases of graphene quantum Hall polariton fluids". United States. doi:10.1038/ncomms13355. https://www.osti.gov/servlets/purl/1425795.
@article{osti_1425795,
title = {Modulated phases of graphene quantum Hall polariton fluids},
author = {Pellegrino, Francesco M. D. and Giovannetti, Vittorio and MacDonald, Allan H. and Polini, Marco},
abstractNote = {There is a growing experimental interest in coupling cavity photons to the cyclotron resonance excitations of electron liquids in high-mobility semiconductor quantum wells or graphene sheets. These media offer unique platforms to carry out fundamental studies of exciton-polariton condensation and cavity quantum electrodynamics in a regime, in which electron–electron interactions are expected to play a pivotal role. Here, focusing on graphene, we present a theoretical study of the impact of electron–electron interactions on a quantum Hall polariton fluid, that is a fluid of magneto-excitons resonantly coupled to cavity photons. We show that electron–electron interactions are responsible for an instability of graphene integer quantum Hall polariton fluids towards a modulated phase. We demonstrate that this phase can be detected by measuring the collective excitation spectra, which is often at a characteristic wave vector of the order of the inverse magnetic length.},
doi = {10.1038/ncomms13355},
journal = {Nature Communications},
number = ,
volume = 7,
place = {United States},
year = {2016},
month = {11}
}

Works referenced in this record:

The electronic properties of graphene
journal, January 2009
  • Castro Neto, A. H.; Guinea, F.; Peres, N. M. R.
  • Reviews of Modern Physics, Vol. 81, Issue 1, p. 109-162
  • DOI: 10.1103/RevModPhys.81.109

Graphene plasmonics
journal, November 2012
  • Grigorenko, A. N.; Polini, M.; Novoselov, K. S.
  • Nature Photonics, Vol. 6, Issue 11, p. 749-758
  • DOI: 10.1038/nphoton.2012.262

Van der Waals heterostructures
journal, July 2013
  • Geim, A. K.; Grigorieva, I. V.
  • Nature, Vol. 499, Issue 7459, p. 419-425
  • DOI: 10.1038/nature12385

Electronics and optoelectronics of two-dimensional transition metal dichalcogenides
journal, November 2012
  • Wang, Qing Hua; Kalantar-Zadeh, Kourosh; Kis, Andras
  • Nature Nanotechnology, Vol. 7, Issue 11, p. 699-712
  • DOI: 10.1038/nnano.2012.193

Two-dimensional atomic crystals
journal, July 2005
  • Novoselov, K. S.; Jiang, D.; Schedin, F.
  • Proceedings of the National Academy of Sciences, Vol. 102, Issue 30, p. 10451-10453
  • DOI: 10.1073/pnas.0502848102

The rise of graphene
journal, March 2007
  • Geim, A. K.; Novoselov, K. S.
  • Nature Materials, Vol. 6, Issue 3, p. 183-191
  • DOI: 10.1038/nmat1849

The chemistry of two-dimensional layered transition metal dichalcogenide nanosheets
journal, April 2013
  • Chhowalla, Manish; Shin, Hyeon Suk; Eda, Goki
  • Nature Chemistry, Vol. 5, Issue 4, p. 263-275
  • DOI: 10.1038/nchem.1589