Sources of negative differential resistance in electric nanotransport
A negative differential resistance (NDR) in nanotransport is often ascribed to electron correlations. We present a simple example revealing that finite electrode bandwidths and energy-dependent electrode density of states can cause a significant NDR, which may occur even in uncorrelated systems. So,...
Gespeichert in:
| Hauptverfasser: | , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
3 May 2010
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| In: |
Physical review. B, Condensed matter and materials physics
Year: 2010, Jahrgang: 81, Heft: 19, Pages: 1-4 |
| ISSN: | 1550-235X |
| DOI: | 10.1103/PhysRevB.81.193401 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevB.81.193401 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevB.81.193401 
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| Verfasserangaben: | Ioan Bâldea and Horst Köppel |
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| 520 | |a A negative differential resistance (NDR) in nanotransport is often ascribed to electron correlations. We present a simple example revealing that finite electrode bandwidths and energy-dependent electrode density of states can cause a significant NDR, which may occur even in uncorrelated systems. So, special care is needed in assessing the role of electron correlations in the NDR. | ||
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