Local Moment Formation in Quantum Point Contacts

Kenji Hirose; Yigal Meir; Ned S. Wingreen

doi:10.1103/PhysRevLett.90.026804

Local Moment Formation in Quantum Point Contacts

Kenji Hirose, Yigal Meir, Ned S. Wingreen

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10 Scopus citations

Abstract

Spin-density-functional theory of quantum point contacts (QPCs) reveals the formation of a local moment with a net of one electron spin in the vicinity of the point contact—supporting the recent report of a Kondo effect in a QPC. The hybridization of the local moment to the leads decreases as the QPC becomes longer, while the on site Coulomb-interaction energy remains almost constant.

Original language	English (US)
Pages (from-to)	4
Number of pages	1
Journal	Physical review letters
Volume	90
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevLett.90.026804
State	Published - 2003

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.90.026804

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title = "Local Moment Formation in Quantum Point Contacts",

abstract = "Spin-density-functional theory of quantum point contacts (QPCs) reveals the formation of a local moment with a net of one electron spin in the vicinity of the point contact—supporting the recent report of a Kondo effect in a QPC. The hybridization of the local moment to the leads decreases as the QPC becomes longer, while the on site Coulomb-interaction energy remains almost constant.",

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AB - Spin-density-functional theory of quantum point contacts (QPCs) reveals the formation of a local moment with a net of one electron spin in the vicinity of the point contact—supporting the recent report of a Kondo effect in a QPC. The hybridization of the local moment to the leads decreases as the QPC becomes longer, while the on site Coulomb-interaction energy remains almost constant.

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Local Moment Formation in Quantum Point Contacts

Abstract

All Science Journal Classification (ASJC) codes

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