High-mobility transport along single quasi-1D quantum wires formed by cleaved edge overgrowth

W. Wegscheider; W. Kang; L. N. Pfeiffer; K. W. West; H. L. Stormer; K. W. Baldwin

doi:10.1016/0038-1101(94)90243-7

High-mobility transport along single quasi-1D quantum wires formed by cleaved edge overgrowth

W. Wegscheider, W. Kang, L. N. Pfeiffer, K. W. West, H. L. Stormer, K. W. Baldwin

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

23 Scopus citations

Abstract

We report on a novel contact scheme which for the first time makes possible magnetotransport measurements on individual quasi-1D quantum wires prepared by cleaved edge overgrowth. Contacting is achieved via two isolated 2D electron systems that are connected to one another by the quantum wire under study. Two-terminal magnetoresistance measurements along our modulation-doped quantum wires exhibit electron mobilities in excess of 2 × 10⁵ cm²/Vs and show pronounced Shubnikov-de Haas oscillations. Clear evidence for confinement of the electrons in 2D is deduced from the retarded depopulation of Landau levels at low magnetic fields. The results are in close agreement with a calculation of the magnetic field dependence of the number of occupied subbands in a narrow channel.

Original language	English (US)
Pages (from-to)	547-550
Number of pages	4
Journal	Solid State Electronics
Volume	37
Issue number	4-6
DOIs	https://doi.org/10.1016/0038-1101(94)90243-7
State	Published - 1994
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Materials Chemistry
Electrical and Electronic Engineering

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10.1016/0038-1101(94)90243-7

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title = "High-mobility transport along single quasi-1D quantum wires formed by cleaved edge overgrowth",

abstract = "We report on a novel contact scheme which for the first time makes possible magnetotransport measurements on individual quasi-1D quantum wires prepared by cleaved edge overgrowth. Contacting is achieved via two isolated 2D electron systems that are connected to one another by the quantum wire under study. Two-terminal magnetoresistance measurements along our modulation-doped quantum wires exhibit electron mobilities in excess of 2 × 105 cm2/Vs and show pronounced Shubnikov-de Haas oscillations. Clear evidence for confinement of the electrons in 2D is deduced from the retarded depopulation of Landau levels at low magnetic fields. The results are in close agreement with a calculation of the magnetic field dependence of the number of occupied subbands in a narrow channel.",

author = "W. Wegscheider and W. Kang and Pfeiffer, {L. N.} and West, {K. W.} and Stormer, {H. L.} and Baldwin, {K. W.}",

year = "1994",

doi = "10.1016/0038-1101(94)90243-7",

language = "English (US)",

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pages = "547--550",

journal = "Solid State Electronics",

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TY - JOUR

T1 - High-mobility transport along single quasi-1D quantum wires formed by cleaved edge overgrowth

AU - Wegscheider, W.

AU - Kang, W.

AU - Pfeiffer, L. N.

AU - West, K. W.

AU - Stormer, H. L.

AU - Baldwin, K. W.

PY - 1994

Y1 - 1994

N2 - We report on a novel contact scheme which for the first time makes possible magnetotransport measurements on individual quasi-1D quantum wires prepared by cleaved edge overgrowth. Contacting is achieved via two isolated 2D electron systems that are connected to one another by the quantum wire under study. Two-terminal magnetoresistance measurements along our modulation-doped quantum wires exhibit electron mobilities in excess of 2 × 105 cm2/Vs and show pronounced Shubnikov-de Haas oscillations. Clear evidence for confinement of the electrons in 2D is deduced from the retarded depopulation of Landau levels at low magnetic fields. The results are in close agreement with a calculation of the magnetic field dependence of the number of occupied subbands in a narrow channel.

AB - We report on a novel contact scheme which for the first time makes possible magnetotransport measurements on individual quasi-1D quantum wires prepared by cleaved edge overgrowth. Contacting is achieved via two isolated 2D electron systems that are connected to one another by the quantum wire under study. Two-terminal magnetoresistance measurements along our modulation-doped quantum wires exhibit electron mobilities in excess of 2 × 105 cm2/Vs and show pronounced Shubnikov-de Haas oscillations. Clear evidence for confinement of the electrons in 2D is deduced from the retarded depopulation of Landau levels at low magnetic fields. The results are in close agreement with a calculation of the magnetic field dependence of the number of occupied subbands in a narrow channel.

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DO - 10.1016/0038-1101(94)90243-7

M3 - Article

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VL - 37

SP - 547

EP - 550

JO - Solid State Electronics

JF - Solid State Electronics

IS - 4-6

ER -

High-mobility transport along single quasi-1D quantum wires formed by cleaved edge overgrowth

Abstract

All Science Journal Classification (ASJC) codes

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