Delocalized-localized transition in a semiconductor two-dimensional honeycomb lattice

G. De Simoni; A. Singha; M. Gibertini; B. Karmakar; M. Polini; V. Piazza; L. N. Pfeiffer; K. W. West; F. Beltram; V. Pellegrini

doi:10.1063/1.3493189

Delocalized-localized transition in a semiconductor two-dimensional honeycomb lattice

G. De Simoni
, A. Singha
, M. Gibertini
, B. Karmakar
, M. Polini
, V. Piazza
, L. N. Pfeiffer
, K. W. West
, F. Beltram
, V. Pellegrini

Research output: Contribution to journal › Article › peer-review

41 Scopus citations

Abstract

We report the magnetotransport properties of a two-dimensional electron gas in a modulation-doped AlGaAs/GaAs heterostructure subjected to a lateral potential with honeycomb geometry. Periodic oscillations of the magnetoresistance and a delocalized-localized transition are shown by applying a gate voltage. We argue that electrons in such artificial-graphene lattices offer a promising approach for the simulation of quantum phases dictated by Coulomb interactions.

Original language	English (US)
Article number	132113
Journal	Applied Physics Letters
Volume	97
Issue number	13
DOIs	https://doi.org/10.1063/1.3493189
State	Published - Sep 27 2010
Externally published	Yes

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

Access to Document

10.1063/1.3493189

Cite this

@article{115135c909b540a7a45b38f56686472e,

title = "Delocalized-localized transition in a semiconductor two-dimensional honeycomb lattice",

abstract = "We report the magnetotransport properties of a two-dimensional electron gas in a modulation-doped AlGaAs/GaAs heterostructure subjected to a lateral potential with honeycomb geometry. Periodic oscillations of the magnetoresistance and a delocalized-localized transition are shown by applying a gate voltage. We argue that electrons in such artificial-graphene lattices offer a promising approach for the simulation of quantum phases dictated by Coulomb interactions.",

author = "\{De Simoni\}, G. and A. Singha and M. Gibertini and B. Karmakar and M. Polini and V. Piazza and Pfeiffer, \{L. N.\} and West, \{K. W.\} and F. Beltram and V. Pellegrini",

year = "2010",

month = sep,

day = "27",

doi = "10.1063/1.3493189",

language = "English (US)",

volume = "97",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

number = "13",

}

TY - JOUR

T1 - Delocalized-localized transition in a semiconductor two-dimensional honeycomb lattice

AU - De Simoni, G.

AU - Singha, A.

AU - Gibertini, M.

AU - Karmakar, B.

AU - Polini, M.

AU - Piazza, V.

AU - Pfeiffer, L. N.

AU - West, K. W.

AU - Beltram, F.

AU - Pellegrini, V.

PY - 2010/9/27

Y1 - 2010/9/27

N2 - We report the magnetotransport properties of a two-dimensional electron gas in a modulation-doped AlGaAs/GaAs heterostructure subjected to a lateral potential with honeycomb geometry. Periodic oscillations of the magnetoresistance and a delocalized-localized transition are shown by applying a gate voltage. We argue that electrons in such artificial-graphene lattices offer a promising approach for the simulation of quantum phases dictated by Coulomb interactions.

AB - We report the magnetotransport properties of a two-dimensional electron gas in a modulation-doped AlGaAs/GaAs heterostructure subjected to a lateral potential with honeycomb geometry. Periodic oscillations of the magnetoresistance and a delocalized-localized transition are shown by applying a gate voltage. We argue that electrons in such artificial-graphene lattices offer a promising approach for the simulation of quantum phases dictated by Coulomb interactions.

UR - https://www.scopus.com/pages/publications/77957653063

UR - https://www.scopus.com/pages/publications/77957653063#tab=citedBy

U2 - 10.1063/1.3493189

DO - 10.1063/1.3493189

M3 - Article

AN - SCOPUS:77957653063

SN - 0003-6951

VL - 97

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 13

M1 - 132113

ER -

Delocalized-localized transition in a semiconductor two-dimensional honeycomb lattice

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this