NDLI: Hot-electron effects in InAs nanowire Josephson junctions

Content Provider	Springer Nature Link
Author	Roddaro, Stefa Pescaglini, Andrea Ercolani, Daniele Sorba, Lucia Giazotto, Francesco Beltram, Fabio
Copyright Year	2010
Abstract	The controlled tailoring of the energy distribution in an electron system opens the way to interesting new physics and device concepts, as demonstrated by research on metallic nanodevices during recent years. Here we investigate how Josephson coupling in a superconductor-InAs nanowire junction can be tuned by means of hot-electron injection and we show that a complete suppression of superconductive effects can be achieved using a power as low as 100 pW. Nanowires offer a novel design freedom as they allow axial and radial heterostructures to be defined as well as control over doping profiles, which can be crucial in the development of devices—such as nanorefrigerators—where precisely controlled and predictable energy barriers are mandatory. Our work provides estimates for unknown key thermal and electrical parameters, such as the electron-phonon coupling, in our InAs nanostructures.
Starting Page	259
Ending Page	265
Page Count	7
File Format	PDF
ISSN	19980124
Journal	Nano Research
Volume Number	4
Issue Number	3
e-ISSN	19980000
Language	English
Publisher	Tsinghua Press
Publisher Date	2010-12-14
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Nanowire hot-electron Josephson effect InAs heat conduction Biotechnology Condensed Matter Physics Materials Science Nanotechnology Biomedicine general Atomic/Molecular Structure and Spectra
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering

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