Treatment of electron viscosity in quantum conductance
| dc.creator | Jung, J. | |
| dc.creator | Bokes, P. | |
| dc.creator | Godby, R. W. | |
| dc.date | 2007-06-01 | |
| dc.date.accessioned | 2026-07-07T09:26:57Z | |
| dc.date.available | 2026-07-07T09:26:57Z | |
| dc.description | In a recent paper Sai {\it et al.} [1] identified a correction $R^{dyn}$ to the DC conductance of nanoscale junctions arising from dynamical exchange-correlation ($XC$) effects within time-dependent density functional theory. This quantity contributes to the total resistance through $R=R_{s}+R^{dyn}$ where $R_{s}$ is the resistance evaluated in the absence of dynamical $XC$ effects. In this Comment we show that the numerical estimation of $R^{dyn}$ in example systems of the type they considered should be considerably reduced, once a more appropriate form for the shear electron viscosity $η$ is used. | |
| dc.description | Comment on ``Dynamical corrections to the DFT-LDA electron conductance in nanoscale systems'', 10.1103/PhysRevLett.94.186810; arXiv:cond-mat/0411098v2 | |
| dc.identifier | https://arxiv.org/abs/0706.0140 | |
| dc.identifier | http://arxiv.org/abs/0706.0140 | |
| dc.identifier | Phys. Rev. Lett. 98, 259701 (2007) | |
| dc.identifier | doi:10.1103/PhysRevLett.98.259701 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/156936 | |
| dc.subject | Materials Science | |
| dc.subject | Mesoscale and Nanoscale Physics | |
| dc.title | Treatment of electron viscosity in quantum conductance | |
| dc.type | text |