Effect of strain on stripe phases in the quantum Hall regime

Sunanda P. Koduvayur; Yuli Lyanda-Geller; Sergei Khlebnikov; Gabor Csathy; Michael J. Manfra; Loren N. Pfeiffer; Kenneth W. West; Leonid P. Rokhinson

doi:10.1103/PhysRevLett.106.016804

Effect of strain on stripe phases in the quantum Hall regime

Sunanda P. Koduvayur, Yuli Lyanda-Geller, Sergei Khlebnikov, Gabor Csathy, Michael J. Manfra, Loren N. Pfeiffer, Kenneth W. West, Leonid P. Rokhinson

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

48 Scopus citations

Abstract

Preferential orientation of the stripe phases in the quantum Hall (QH) regime has remained a puzzle since its discovery. We show experimentally and theoretically that the direction of high and low resistance of the two-dimensional (2D) hole gas in the QH regime can be controlled by an external strain. Depending on the sign of the in-plane shear strain, the Hartree-Fock energy of holes or electrons is minimized when the charge density wave (CDW) is oriented along the [110] or [11̄0] directions. We suggest that shear strains due to internal electric fields in the growth direction are responsible for the observed orientation of CDW in pristine electron and hole samples.

Original language	English (US)
Article number	016804
Journal	Physical review letters
Volume	106
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevLett.106.016804
State	Published - 2011
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

Access to Document

10.1103/PhysRevLett.106.016804

Cite this

@article{89e861f777b34d7aaf9f23ea013c2ebd,

title = "Effect of strain on stripe phases in the quantum Hall regime",

abstract = "Preferential orientation of the stripe phases in the quantum Hall (QH) regime has remained a puzzle since its discovery. We show experimentally and theoretically that the direction of high and low resistance of the two-dimensional (2D) hole gas in the QH regime can be controlled by an external strain. Depending on the sign of the in-plane shear strain, the Hartree-Fock energy of holes or electrons is minimized when the charge density wave (CDW) is oriented along the [110] or [1{\=1}0] directions. We suggest that shear strains due to internal electric fields in the growth direction are responsible for the observed orientation of CDW in pristine electron and hole samples.",

author = "Koduvayur, {Sunanda P.} and Yuli Lyanda-Geller and Sergei Khlebnikov and Gabor Csathy and Manfra, {Michael J.} and Pfeiffer, {Loren N.} and West, {Kenneth W.} and Rokhinson, {Leonid P.}",

year = "2011",

doi = "10.1103/PhysRevLett.106.016804",

language = "English (US)",

volume = "106",

journal = "Physical review letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "1",

}

TY - JOUR

T1 - Effect of strain on stripe phases in the quantum Hall regime

AU - Koduvayur, Sunanda P.

AU - Lyanda-Geller, Yuli

AU - Khlebnikov, Sergei

AU - Csathy, Gabor

AU - Manfra, Michael J.

AU - Pfeiffer, Loren N.

AU - West, Kenneth W.

AU - Rokhinson, Leonid P.

PY - 2011

Y1 - 2011

N2 - Preferential orientation of the stripe phases in the quantum Hall (QH) regime has remained a puzzle since its discovery. We show experimentally and theoretically that the direction of high and low resistance of the two-dimensional (2D) hole gas in the QH regime can be controlled by an external strain. Depending on the sign of the in-plane shear strain, the Hartree-Fock energy of holes or electrons is minimized when the charge density wave (CDW) is oriented along the [110] or [11̄0] directions. We suggest that shear strains due to internal electric fields in the growth direction are responsible for the observed orientation of CDW in pristine electron and hole samples.

AB - Preferential orientation of the stripe phases in the quantum Hall (QH) regime has remained a puzzle since its discovery. We show experimentally and theoretically that the direction of high and low resistance of the two-dimensional (2D) hole gas in the QH regime can be controlled by an external strain. Depending on the sign of the in-plane shear strain, the Hartree-Fock energy of holes or electrons is minimized when the charge density wave (CDW) is oriented along the [110] or [11̄0] directions. We suggest that shear strains due to internal electric fields in the growth direction are responsible for the observed orientation of CDW in pristine electron and hole samples.

UR - http://www.scopus.com/inward/record.url?scp=78651344810&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=78651344810&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.106.016804

DO - 10.1103/PhysRevLett.106.016804

M3 - Article

C2 - 21231765

AN - SCOPUS:78651344810

SN - 0031-9007

VL - 106

JO - Physical review letters

JF - Physical review letters

IS - 1

M1 - 016804

ER -

Effect of strain on stripe phases in the quantum Hall regime

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this