Nanoelectromechanics and single-charge tunneling |
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Institution: | 1. Max-Planck-Institut für Eisenforschung GmbH, Max-Planck-Straße 1, Düsseldorf 40237, Germany;2. Materials Chemistry, RWTH Aachen University, Kopernikusstr. 10, Aachen D-52074, Germany;1. Department of Food Science, University of Massachusetts, Amherst, MA 01003, USA;2. School of Pharmacy, Ocean University of China, Qingdao, China;3. Institute of Agro-Products Processing Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, China;4. Department of Biochemistry, Faculty of Science, King Abdulaziz University, P. O. Box 80203, Jeddah 21589, Saudi Arabia |
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Abstract: | The coupling of electronic and mechanical degrees of freedom has important consequences in nanoscale systems, as emphasized in recent theoretical and experimental work. In particular, the electrical properties of composite nanosystems containing elements with quite different abilities to conduct electricity and with different mechanical properties have been found to be strongly affected. Here we briefly review some of our recent work on the nanoelectromechanics of “heteroconducting” and “heteroelastic” Coulomb blockade systems, where single charge tunneling is the dominant conduction mechanism. We examplify nanoelectromechanical effects both in normal and superconducting systems by discussing (i) a self-assembled single-electron tunneling device exhibiting a dynamical instability leading to “shuttling” of electrons by a movable Coulomb dot and (ii) shuttling of Cooper pairs by a movable single-Cooper-pair box. |
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