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B. A. Cowans
Researcher at Purdue University
Publications - 3
Citations - 178
B. A. Cowans is an academic researcher from Purdue University. The author has contributed to research in topics: X-ray photoelectron spectroscopy & Ammonium sulfide. The author has an hindex of 3, co-authored 3 publications receiving 175 citations.
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Investigations of ammonium sulfide surface treatments on GaAs
TL;DR: In this paper, X-ray photoelectron spectroscopy (XPS) and reflection high-energy electron diffraction (RHEED) results are presented for ammonium sulfide treated (100) GaAs surfaces.
Journal ArticleDOI
X‐ray photoelectron spectroscopy of ammonium sulfide treated GaAs (100) surfaces
TL;DR: The effect of ammonium sulfide treatment on the GaAs(100) surface has been investigated by x-ray photoelectron spectroscopy as discussed by the authors, which produces a slight Ga enrichment on the surface and leaves roughly 0.6 of a monolayer of sulfide which inhibits initial oxidation of the surface.
Journal ArticleDOI
Dual-wavelength radiation thermometry: Emissivity compensation algorithms
Benjamin K. Tsai,R. L. Shoemaker,D. P. DeWitt,B. A. Cowans,Z. Dardas,W. N. Delgass,G. J. Dail +6 more
TL;DR: In this paper, the features of the basie spectral and ratio methods and five dualwavelength methods were reviewed on a series of aluminum alloys with different surface treatments characterized by x-ray photoelectron spectroscopy in the temperature range 600 to 750 K.