Local moment formation in quantum point contacts

Kenji Hirose; Yigal Meir; Ned S. Wingreen

Local moment formation in quantum point contacts

Kenji Hirose, Yigal Meir, Ned S. Wingreen

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

Abstract

The electronic states of quantum point contacts were studied using the spin-density-functional method. It was found that a local moment with a spin of 1/2 is formed in the vicinity of the QPC barrier. For the local moment, estimates were obtained for both the on site Coulomb-interaction energy and the hybridization to the leads.

Original language	English (US)
Article number	026804
Pages (from-to)	026804/1-026804/4
Journal	Physical review letters
Volume	90
Issue number	2
State	Published - Jan 17 2003
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

Cite this

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title = "Local moment formation in quantum point contacts",

abstract = "The electronic states of quantum point contacts were studied using the spin-density-functional method. It was found that a local moment with a spin of 1/2 is formed in the vicinity of the QPC barrier. For the local moment, estimates were obtained for both the on site Coulomb-interaction energy and the hybridization to the leads.",

author = "Kenji Hirose and Yigal Meir and Wingreen, {Ned S.}",

note = "Funding Information: The work by Y. M. at Rutgers was partially supported by NSF Grant No. DMR 00-93079 and by DOE Grant No. DE-FG02-00ER45790, and K. H. acknowledges useful discussions with Shu-Shen Li. ",

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AU - Meir, Yigal

AU - Wingreen, Ned S.

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PY - 2003/1/17

Y1 - 2003/1/17

N2 - The electronic states of quantum point contacts were studied using the spin-density-functional method. It was found that a local moment with a spin of 1/2 is formed in the vicinity of the QPC barrier. For the local moment, estimates were obtained for both the on site Coulomb-interaction energy and the hybridization to the leads.

AB - The electronic states of quantum point contacts were studied using the spin-density-functional method. It was found that a local moment with a spin of 1/2 is formed in the vicinity of the QPC barrier. For the local moment, estimates were obtained for both the on site Coulomb-interaction energy and the hybridization to the leads.

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Local moment formation in quantum point contacts

Abstract

All Science Journal Classification (ASJC) codes

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