Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/5393
Title: Landauer-Büttiker formula for time-dependent transport through resonant-tunneling structures : a nonequilibrium Green’s function approach
Authors: You, JQ
Lam, CH 
Zheng, HZ
Keywords: Green's function methods
Resonant tunnelling
Current partition
Conductance
Systems
Issue Date: 15-Jul-2000
Publisher: American Physical Society
Source: Physical review B, condensed matter and materials physics, 15 July 2000, v. 62, no. 3, p. 1978-1983 How to cite?
Journal: Physical review B 
Abstract: A nonequilibrium Green’s-function formalism is employed to study the time-dependent transport through resonant-tunneling structures. With this formalism, we derive a time-dependent Landauer-Büttiker formula that guarantees current conservation and gauge invariance. Furthermore, we apply the formula to calculate the response behaviors of the resonant-tunneling structures in the presence of rectangular-pulse and harmonic-modulation fields. The results show that the displacement current plays the role of retarding the tunneling current.
URI: http://hdl.handle.net/10397/5393
ISSN: 1098-0121 (print)
1550-235X (online)
DOI: 10.1103/PhysRevB.62.1978
Rights: Physical Review B © 2000 The American Physical Society. The Journal's web site is located at http://prb.aps.org/
Appears in Collections:Journal/Magazine Article

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