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Suspended semiconductor nanostructures: physics and technology

Pogosov, AG; Shevyrin, AA; Pokhabov, DA; Zhdanov, E Yu; Kumar, S; (2022) Suspended semiconductor nanostructures: physics and technology. Journal of Physics: Condensed Matter , 34 (26) , Article 263001. 10.1088/1361-648X/ac6308. Green open access

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Abstract

The current state of research on quantum and ballistic electron transport in semiconductor nanostructures with a two-dimensional electron gas separated from the substrate and nanoelectromechanical systems is reviewed. These nanostructures fabricated using the surface nanomachining technique have certain unexpected features in comparison to their non-suspended counterparts, such as additional mechanical degrees of freedom, enhanced electron-electron interaction and weak heat sink. Moreover, their mechanical functionality can be used as an additional tool for studying the electron transport, complementary to the ordinary electrical measurements. The article includes a comprehensive review of spin-dependent electron transport and multichannel effects in suspended quantum point contacts, ballistic and adiabatic transport in suspended nanostructures, as well as investigations on nanoelectromechanical systems. We aim to provide an overview of the state-of-the-art in suspended semiconductor nanostructures and their applications in nanoelectronics, spintronics and emerging quantum technologies.

Type: Article
Title: Suspended semiconductor nanostructures: physics and technology
Location: England
Open access status: An open access version is available from UCL Discovery
DOI: 10.1088/1361-648X/ac6308
Publisher version: https://doi.org/10.1088/1361-648X%2Fac6308
Language: English
Additional information: This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third-party material in this article are included in the Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
Keywords: nanostructures, physics, quantum point contact, quantum wire, semiconductors, suspended, technology
UCL classification: UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL
URI: https://discovery.ucl.ac.uk/id/eprint/10148153
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