Universal conductance fluctuations in a multi-subband quantum well

H. A. Carmona; A. K. Geim; C. J G M Langerak; T. J. Foster; C. V. Brown; P. C. Main; S. P. Beaumont

Universal conductance fluctuations in a multi-subband quantum well

H. A. Carmona, A. K. Geim, C. J G M Langerak, T. J. Foster, C. V. Brown, P. C. Main, S. P. Beaumont

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

Abstract

We have investigated mesoscopic conductance fluctuations in a GaAs quantum well with five electrically quantised two-dimensional (2D) subbands occupied. The conductance fluctuations occur even in a magnetic field parallel to the plane. We attribute the fluctuations to rapid electron-impurity scattering between different 2D subbands which leads to quasi-3d motion of electrons within the quantum well. We also report for the first time, the angular correlation of the fluctuations as the magnetic field is rotated. © 1995.

Original language	English
Pages (from-to)	437-439
Number of pages	2
Journal	Physica B: Condensed Matter
Volume	211
Issue number	1-4
Publication status	Published - 1 May 1995

Keywords

high magnetic-fields
extrinsic conductivity
magnetoresistance
heterostructures
localization
diffusion
metals

Cite this

@article{4cd5340ca57a4f26b2ec870771e0cf4b,

title = "Universal conductance fluctuations in a multi-subband quantum well",

abstract = "We have investigated mesoscopic conductance fluctuations in a GaAs quantum well with five electrically quantised two-dimensional (2D) subbands occupied. The conductance fluctuations occur even in a magnetic field parallel to the plane. We attribute the fluctuations to rapid electron-impurity scattering between different 2D subbands which leads to quasi-3d motion of electrons within the quantum well. We also report for the first time, the angular correlation of the fluctuations as the magnetic field is rotated. {\textcopyright} 1995.",

keywords = "high magnetic-fields, extrinsic conductivity, magnetoresistance, heterostructures, localization, diffusion, metals",

author = "Carmona, {H. A.} and Geim, {A. K.} and Langerak, {C. J G M} and Foster, {T. J.} and Brown, {C. V.} and Main, {P. C.} and Beaumont, {S. P.}",

note = "Rd544 Times Cited:0 Cited References Count:14",

year = "1995",

month = may,

day = "1",

language = "English",

volume = "211",

pages = "437--439",

journal = "Physica B: Condensed Matter",

issn = "2469-9969",

publisher = "American Physical Society",

number = "1-4",

}

TY - JOUR

T1 - Universal conductance fluctuations in a multi-subband quantum well

AU - Carmona, H. A.

AU - Geim, A. K.

AU - Langerak, C. J G M

AU - Foster, T. J.

AU - Brown, C. V.

AU - Main, P. C.

AU - Beaumont, S. P.

N1 - Rd544 Times Cited:0 Cited References Count:14

PY - 1995/5/1

Y1 - 1995/5/1

N2 - We have investigated mesoscopic conductance fluctuations in a GaAs quantum well with five electrically quantised two-dimensional (2D) subbands occupied. The conductance fluctuations occur even in a magnetic field parallel to the plane. We attribute the fluctuations to rapid electron-impurity scattering between different 2D subbands which leads to quasi-3d motion of electrons within the quantum well. We also report for the first time, the angular correlation of the fluctuations as the magnetic field is rotated. © 1995.

AB - We have investigated mesoscopic conductance fluctuations in a GaAs quantum well with five electrically quantised two-dimensional (2D) subbands occupied. The conductance fluctuations occur even in a magnetic field parallel to the plane. We attribute the fluctuations to rapid electron-impurity scattering between different 2D subbands which leads to quasi-3d motion of electrons within the quantum well. We also report for the first time, the angular correlation of the fluctuations as the magnetic field is rotated. © 1995.

KW - high magnetic-fields

KW - extrinsic conductivity

KW - magnetoresistance

KW - heterostructures

KW - localization

KW - diffusion

KW - metals

M3 - Article

SN - 2469-9969

VL - 211

SP - 437

EP - 439

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

IS - 1-4

ER -

Universal conductance fluctuations in a multi-subband quantum well

Abstract

Keywords

Fingerprint

Cite this