An exact ab initio theory of quantum transport using TDDFT and nonequilibrium Green's functions

Journal of Physics: Conference Series

Volumn 35, Issue 1, 2006, Pages 17-24

  Stefanucci, G ^a   Almbladh, C O ^a  

^a LUND UNIVERSITY   (Sweden)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 33646515796     PISSN: 17426588     EISSN: 17426596     Source Type: Conference Proceeding    
DOI: 10.1088/1742-6596/35/1/002     Document Type: Conference Paper

References (24)

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24. The switching on of an electric field excites plasmon oscillations which dynamically screen the external disturbance. Such a metallic screening prevents any rearrangements of the initial equilibrium bulk-density, provided the time-dependent perturbation is slowly varying during a typical plasmon time-scale (which is usually less than a fs). Thus, the KS potential vs undergoes a uniform time-dependent shift deep inside the left and right electrodes and the KS potential-drop is entirely limited to the central region.