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Schottky diodes of Au on GaAs/sub 1-x/Sb/sub x//GaAs n-N heterostructures grown by MBE

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1 Author(s)
Zhao, J.H. ; Dept. of Electr. & Comput. Eng., Rutgers Univ., Piscataway, NJ, USA

Au Schottky barrier heights on molecular-beam-epitaxial grown n-GaAs/sub 1-x/Sb/sub x//N-GaAs heterostructures with x up to 0.26 have been studied. It was found that phi /sub bn/=0.9-1.77x+2.89x/sup 2/, or phi /sub bn/ approximately=0.77E/sub g/-0.20 for x<0.26. The pinning position of the Fermi level with respect to the valence-band edge for x<0.26 takes the form of E/sub pin/=-0.52x+0.53 eV, which also appears to be valid for an x value up to 1.0.<>

Published in:

Electron Device Letters, IEEE  (Volume:11 ,  Issue: 10 )