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X‐ray photoemission core level determination of the GaSb/AlSb heterojunction valence‐band discontinuity
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10.Anomalously large shifts in the core level binding energy and line shape distortions were observed for submonolayer gold coverages due to metal clustering and/or reaction with the epilayers. With increasing gold coverage, the core level binding energies and line shapes stabilized. The reported data all reflect this thick gold limit.
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15.It should be noted that there are two potential sources of error which are not included in the quoted value of First, there is a systematic error associated with the literature values of the Schottky barrier heights shown in Table I, which is estimated to be Second, band bending has been neglected, though this effect should be small for the moderate doping levels of our samples In addition, due to our instrumental resolution, no broadening of the Ga 3d and Al 2p core level peaks was observed in the spectra from interface bonding as compared to the pure binaries.
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