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Scenario for the 0....
Scenario for the 0.7-conductance anomaly in quantum point contacts
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- Starikov, Anton (author)
- Linköpings universitet,Tekniska högskolan,Institutionen för fysik, kemi och biologi
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- Yakimenko, II (author)
- Linköpings universitet,Teoretisk Fysik,Tekniska högskolan
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- Berggren, Karl-Fredrik (author)
- Linköpings universitet,Tekniska högskolan,Teoretisk Fysik
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(creator_code:org_t)
- 2003
- 2003
- English.
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In: Physical Review B. Condensed Matter and Materials Physics. - 1098-0121 .- 1550-235X. ; 67:23
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Effects of spontaneous spin polarization in quantum point contacts (QPC's) are investigated for a realistic semiconductor device structure using the Kohn-Sham local spin-density formalism. At maximal polarization in the contact area, there is a bifurcation into ground-state and metastable solutions. The conduction associated with the metastability is lower than for the normal state. With increasing temperature, the conductance should therefore show an anomalous behavior as observed. For the present device we do not recover resonance or quasibound states.
Keyword
- TECHNOLOGY
- TEKNIKVETENSKAP
Publication and Content Type
- ref (subject category)
- art (subject category)
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