Current bistability in double-barrier resonant-tunneling devices

T. J. Foster; M. L. Leadbeater; L. Eaves; M. Henini; O. H. Hughes; C. A. Payling; F. W. Sheard; P. E. Simmonds; G. A. Toombs; G. Hill; M. A. Pate

doi:10.1103/PhysRevB.39.6205

Current bistability in double-barrier resonant-tunneling devices

T. J. Foster, M. L. Leadbeater, L. Eaves, M. Henini, O. H. Hughes, C. A. Payling, F. W. Sheard, P. E. Simmonds, G. A. Toombs, G. Hill, and M. A. Pate

Phys. Rev. B 39, 6205 – Published 15 March 1989

Abstract

We show that the bistability effect observed in the current-voltage characteristics of a double-barrier resonant-tunneling device can be removed by connecting a suitable capacitor across the device. These measurements cast serious doubt on the recent interpretation of the bistability as an intrinsic space-charge effect.

Received 28 July 1988

DOI:https://doi.org/10.1103/PhysRevB.39.6205

Authors & Affiliations

T. J. Foster, M. L. Leadbeater, L. Eaves, M. Henini, O. H. Hughes, C. A. Payling, F. W. Sheard, P. E. Simmonds, and G. A. Toombs

Department of Physics, University of Nottingham, Nottingham NG7 2RD, United Kingdom

G. Hill and M. A. Pate

Department of Electronic and Electrical Engineering, University of Sheffield, Sheffield S1 3JD, United Kingdom

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Vol. 39, Iss. 9 — 15 March 1989

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