High resolution InSb quantum well ballistic nanosensors for room temperature applications

Gilbertson, Adam and Lambert, C. J. and Solin, S. A. and Cohen, L. F. (2013) High resolution InSb quantum well ballistic nanosensors for room temperature applications. AIP Conference Proceedings, 1566. pp. 111-112. ISSN 0094-243X

Abstract

We report the room temperature operation of a quasi-ballistic InSb quantum well Hall sensor that exhibits a high frequency sensitivity of 560nT/root Hz at 20uA bias current. The device utilizes a partitioned buffer layer design that suppresses leakage currents through the mesa floor and can sustain large current densities.