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, 83 (7): 075304. -. ISSN 1098-0121

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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:
Journal Article
Journal or Publication Title:
Physical review B
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© 2011 American Physical Society
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?? physicsqc physics ??
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Deposited On:
29 Sep 2011 12:24
Last Modified:
28 Jun 2024 23:29