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Chinese Physics, 2001, Vol. 10(12): 1154-1156    DOI: 10.1088/1009-1963/10/12/314
CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES Prev   Next  

DYNAMICAL BEHAVIOUR OF THE SUPERCURRENT IN MESOSCOPIC JOSEPHSON JUNCTIONS

Yu Kai-zhi (俞开智), Zou Jian (邹健), Shao Bin (邵彬)
Department of Applied Physics, Beijing Institute of Technology, Beijing 100081, China
Abstract  In this paper we use a numerical method to study the quantum effect of dynamical localization on the supercurrent in a mesoscopic Josephson junction driven by a periodically external electromagnetic field. We find that the charge is localized effectively when the ratio of the field magnitude and the field frequency equal some critical values, and in these cases the amplitude of the oscillation of the supercurrent will remain constant.
Keywords:  mesoscopic Josephson junction      dynamical localization      supercurrent  
Received:  05 July 2001      Revised:  20 July 2001      Accepted manuscript online: 
PACS:  74.78.Na (Mesoscopic and nanoscale systems)  
  74.50.+r (Tunneling phenomena; Josephson effects)  

Cite this article: 

Yu Kai-zhi (俞开智), Zou Jian (邹健), Shao Bin (邵彬) DYNAMICAL BEHAVIOUR OF THE SUPERCURRENT IN MESOSCOPIC JOSEPHSON JUNCTIONS 2001 Chinese Physics 10 1154

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