Detection of spin polarization in quantum point contacts

Leonid P. Rokhinson; Loren N. Pfeiffer; Ken W. West

doi:10.1088/0953-8984/20/16/164212

Detection of spin polarization in quantum point contacts

Leonid P. Rokhinson, Loren N. Pfeiffer, Ken W. West

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

11 Scopus citations

Abstract

We use spatial spin separation by a magnetic focusing technique to probe the polarization of quantum point contacts. The point contacts are fabricated from p-type GaAs/AlGaAs heterostructures. A finite polarization is measured in the low density regime, when the conductance of a point contact is tuned to <2e²/h. Polarization is stronger in samples with a well defined '0.7 structure'.

Original language	English (US)
Article number	164212
Journal	Journal of Physics Condensed Matter
Volume	20
Issue number	16
DOIs	https://doi.org/10.1088/0953-8984/20/16/164212
State	Published - Apr 23 2008
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Materials Science
Condensed Matter Physics

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10.1088/0953-8984/20/16/164212

Cite this

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title = "Detection of spin polarization in quantum point contacts",

abstract = "We use spatial spin separation by a magnetic focusing technique to probe the polarization of quantum point contacts. The point contacts are fabricated from p-type GaAs/AlGaAs heterostructures. A finite polarization is measured in the low density regime, when the conductance of a point contact is tuned to <2e2/h. Polarization is stronger in samples with a well defined '0.7 structure'.",

author = "Rokhinson, {Leonid P.} and Pfeiffer, {Loren N.} and West, {Ken W.}",

year = "2008",

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T1 - Detection of spin polarization in quantum point contacts

AU - Rokhinson, Leonid P.

AU - Pfeiffer, Loren N.

AU - West, Ken W.

PY - 2008/4/23

Y1 - 2008/4/23

N2 - We use spatial spin separation by a magnetic focusing technique to probe the polarization of quantum point contacts. The point contacts are fabricated from p-type GaAs/AlGaAs heterostructures. A finite polarization is measured in the low density regime, when the conductance of a point contact is tuned to <2e2/h. Polarization is stronger in samples with a well defined '0.7 structure'.

AB - We use spatial spin separation by a magnetic focusing technique to probe the polarization of quantum point contacts. The point contacts are fabricated from p-type GaAs/AlGaAs heterostructures. A finite polarization is measured in the low density regime, when the conductance of a point contact is tuned to <2e2/h. Polarization is stronger in samples with a well defined '0.7 structure'.

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U2 - 10.1088/0953-8984/20/16/164212

DO - 10.1088/0953-8984/20/16/164212

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JO - Journal of Physics Condensed Matter

JF - Journal of Physics Condensed Matter

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ER -

Detection of spin polarization in quantum point contacts

Abstract

All Science Journal Classification (ASJC) codes

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