Spontaneous spin polarization in quantum point contacts

L. P. Rokhinson; L. N. Pfeiffer; K. W. West

doi:10.1103/PhysRevLett.96.156602

Spontaneous spin polarization in quantum point contacts

L. P. Rokhinson, L. N. Pfeiffer, K. W. West

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

121 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	156602
Journal	Physical review letters
Volume	96
Issue number	15
DOIs	https://doi.org/10.1103/PhysRevLett.96.156602
State	Published - 2006
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.96.156602

Cite this

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title = "Spontaneous 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.{"}",

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year = "2006",

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AU - Pfeiffer, L. N.

AU - West, K. W.

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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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DO - 10.1103/PhysRevLett.96.156602

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Spontaneous spin polarization in quantum point contacts

Abstract

All Science Journal Classification (ASJC) codes

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