Twin-induced InSb nanosails: a convenient high mobility quantum system

de la Mata, María, Leturcq, Renaud, Plissard, Sébastien R., Rolland, Chloé, Magén, César, Arbiol, Jordi and Caroff, Philippe 2016. Twin-induced InSb nanosails: a convenient high mobility quantum system. Nano Letters 16 (2) , pp. 825-833. 10.1021/acs.nanolett.5b05125

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Abstract

Ultra narrow bandgap III–V semiconductor nanomaterials provide a unique platform for realizing advanced nanoelectronics, thermoelectrics, infrared photodetection, and quantum transport physics. In this work we employ molecular beam epitaxy to synthesize novel nanosheet-like InSb nanostructures exhibiting superior electronic performance. Through careful morphological and crystallographic characterization we show how this unique geometry is the result of a single twinning event in an otherwise pure zinc blende structure. Four-terminal electrical measurements performed in both the Hall and van der Pauw configurations reveal a room temperature electron mobility greater than 12 000 cm2·V–1·s–1. Quantized conductance in a quantum point contact processed with a split-gate configuration is also demonstrated. We thus introduce InSb “nanosails” as a versatile and convenient platform for realizing new device and physics experiments with a strong interplay between electronic and spin degrees of freedom.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Physics and Astronomy
Subjects:	Q Science > QC Physics
Publisher:	American Chemical Society
ISSN:	1530-6984
Date of First Compliant Deposit:	31 July 2017
Date of Acceptance:	1 January 2016
Last Modified:	15 May 2023 01:42
URI:	https://orca.cardiff.ac.uk/id/eprint/101615

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