Ballistic transport and boundary scattering in InSb/In1-xAlxSb mesoscopic devices

Gilbertson, A. M. and Fearn, M. and Kormanyos, A. and Read, D. E. and Lambert, Colin and Emeny, M. T. and Ashley, T. and Solin, S. A. and Cohen, L. F. (2011) Ballistic transport and boundary scattering in InSb/In1-xAlxSb mesoscopic devices. Physical Review B: Condensed Matter and Materials Physics, 83 (7). -.

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Official URL: http://dx.doi.org/10.1103/PhysRevB.83.075304

Abstract

We describe the influence of hard-wall confinement and lateral dimension on the low-temperature transport properties of long diffusive channels and ballistic crosses fabricated in an InSb/In1-xAlxSb heterostructure. Partially diffuse boundary scattering is found to play a crucial role in the electron dynamics of ballistic crosses and substantially enhance the negative bend resistance. Experimental observations are supported by simulations using a classical billiard ball model for which good agreement is found when diffuse boundary scattering is included.

Item Type:	Article
Journal or Publication Title:	Physical Review B: Condensed Matter and Materials Physics
Additional Information:	© 2011 American Physical Society
Subjects:	Q Science > QC Physics
Departments:	Faculty of Science and Technology > Physics
ID Code:	50035
Deposited By:	ep_importer_pure
Deposited On:	29 Sep 2011 13:24
Refereed?:	Yes
Published?:	Published
Last Modified:	20 Feb 2013 12:25
Identification Number:
URI:	http://eprints.lancs.ac.uk/id/eprint/50035

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