J
John L. Freeouf
Researcher at IBM
Publications - 100
Citations - 4081
John L. Freeouf is an academic researcher from IBM. The author has contributed to research in topics: Schottky barrier & Band gap. The author has an hindex of 32, co-authored 100 publications receiving 4003 citations. Previous affiliations of John L. Freeouf include Oregon Health & Science University & Portland State University.
Papers
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Journal ArticleDOI
Relation of Schottky Barriers to Empty Surface States on III-V Semiconductors
D. E. Eastman,John L. Freeouf +1 more
TL;DR: In this paper, it was shown that intrinsic surface states play a predominant role in determining Schottky-barrier energies for III-V semiconductors, and that these sharp molecular-like surface states are insensitive to metal overlayers and to be cation derived.
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Size dependence of ’’effective’’ barrier heights of mixed‐phase contacts
TL;DR: The literature currently abounds with experimental studies of Schottky barrier heights of various metals upon many semiconductors as mentioned in this paper, however, these studies present some puzzling aspects: (1) Commonly, barriers determined by C-V studies are larger than barrier determined by I−V studies, and (2) Results obtained by different workers under apparently identical conditions are not always similar.
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Spectral ellipsometry investigation of Zn 0.53 Cd 0.47 Se lattice matched to InP
TL;DR: In this article, the bulk and surface oxide properties of a molecular-beam-epitaxy grown from Zn and Cd were studied at 300 K, in the range 0.8-5.5 eV.
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Temperature- and Composition-Dependent Valence Mixing of Sm in Cation-and Anion-Substituted SmS Observed by X-ray Photoemission Spectroscopy
TL;DR: In this article, the interconfiguration mixing ratios of 1.4 and 4.1 were determined from x-ray photo-emission spectra, and the agreement of these results with valences deduced from lattice-constant measurements is direct evidence that configuration mixing is responsible for the anomalous temperature and composition dependence of the lattice constant.