Söderström, J. R. and Chow, D. H. and McGill, T. C. (1989) Observation of large peak-to-valley current ratios and large peak current densities in AlSb/InAs/AlSb double-barrier tunnel structures. Journal of Applied Physics, 66 (10). pp. 5106-5108. ISSN 0021-8979 http://resolver.caltech.edu/CaltechAUTHORS:SODjap89
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We report improved peak-to-valley current ratios and peak current densities in InAs/AlSb double-barrier, negative differential resistance tunnel structures. Our peak-to-valley current ratios are 2.9 at room temperature and 10 at liquid-nitrogen temperatures. Furthermore, we have observed peak current densities of 1.7×10^5 A/cm^2. These figures of merit are substantially better than previously reported values. The improvements are obtained by adding spacer layers near the barriers, thinner well regions, and thinner barriers.
|Additional Information:||Copyright © 1989 American Institute of Physics. Received 1 May 1989; accepted 1 August 1989. The authors gratefully acknowledge the support of the Air Force Office of Scientific Research under Grant No. 86-0306. One of us (J.R.S.) gratefully acknowledges the support of the Sweden-America Foundation. Another (D.H.C.) gratefully acknowledges the support provided by the TRW-PAT Fellowship.|
|Subject Keywords:||ALUMINUM ANTIMONIDES, INDIUM ARSENIDES, HETEROSTRUCTURES, TUNNEL EFFECT, ELECTRIC CURRENTS, CURRENT DENSITY, MEDIUM TEMPERATURE, LOW TEMPERATURE, POTENTIAL BARRIER, MOLECULAR BEAM EPITAXY, SUPERLATTICES, DISLOCATIONS, STRAINS, IV CHARACTERISTICS|
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|Deposited On:||16 Apr 2008|
|Last Modified:||26 Dec 2012 09:57|
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