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Electromechanical Phenomena in Superconducting and Normal Nanostructures


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Title: Electromechanical Phenomena in Superconducting and Normal Nanostructures
Authors: Pena Aza, Milton Eduardo
E-mail: miltoneduardo@gmail.com
Issue Date: 8-May-2013
University: Göteborgs universitet. Naturvetenskapliga fakulteten
Institution: Department of Physics ; Institutionen för fysik
Parts of work: I. Cooling of a suspended nanowire by an ac Josephson current flow. Physical Review Letters, 104 ( 22 ) p. 226802.
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II. Voltage-driven superconducting weak link as a refrigerator for cooling of nanomechanical vibrations. Low Temperature Physics, 36 (10)p.902.
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III. Dynamics of a suspended nanowire driven by an ac Josephson current in an inhomogeneous magnetic field. Physical Review E, 86 ( 4 ) p.046208.
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IV. Parametric excitation of a dc shuttle current via spontaneous symmetry breaking. Unpublished manuscript
Date of Defence: 2013-05-30
Disputation: Torsdagen den 30:e maj 2013, klockan13.00 i GD-salen, Chalmers tekniska högskola, (campus Johanneberg), Origovägen 1, Göteborg
Degree: Doctor of Philosophy
Publication type: Doctoral thesis
Keywords: Nanoelectromechanical systems, nanoelectromechanical Josephson junctions, metallic carbon nanotubes, ground-state cooling, chaos
Abstract: This thesis summarizes a series of theoretical studies on the electromechanical properties of nanostructures made of superconducting and/or metallic elements. The first part of the work is devoted to the analysis of the interactions between the electronic and mechanical degrees of freedom in suspended nanowires. In particular, a metallic carbon nanotube fixed between two superconducting leads and acting as a superconducting weak link is considered. This system is denoted as a nanoelectromechanic... more
ISBN: 978-91-628-8699-8
URI: http://hdl.handle.net/2077/32677
Appears in Collections:Doctoral Theses from University of Gothenburg / Doktorsavhandlingar från Göteborgs universitet
Doctoral Theses / Doktorsavhandlingar Institutionen för fysik

 

 

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