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An x-ray photoelectron spectroscopy study of Au sub x In sub y alloys

Journal Article · · Journal of Vacuum Science and Technology, A (Vacuum, Surfaces and Films); (USA)
DOI:https://doi.org/10.1116/1.577637· OSTI ID:5625281
 [1];  [2];  [3]
  1. Department of Physics, Case Western Reserve University, Cleveland, Ohio 44106 (USA)
  2. Sverdrup Technology, Inc., Lewis Research Center Group, 2001 Aerospace Parkway, Brookpark, Ohio 44142 (USA)
  3. NASA Lewis Research Center, 21000 Brookpark Road, Cleveland, Ohio 44135 (USA)
Four gold--indium alloys have been studied by x-ray photoelectron spectroscopy. The binding energies and intensity ratios of the Au 4{ital f}{sub 7/2} and In 3{ital d}{sub 5/2} core levels were determined for the bulk alloy compositions of Au(10% In), Au{sub 3}In, AuIn, and AuIn{sub 2}. These values were determined for the native oxides on the materials, for the surfaces prepared by ion bombardment to remove the oxide and for surfaces scraped {ital in} {ital situ} with a ceramic tool to expose the bulk composition. These results furnish calibration values that allow determination of the composition of thin films of this alloy system. In addition the binding energies add to the data base for understanding the effect of alloying on core level binding energies. As an illustration, these results are used to determine the composition of a series of alloy films formed by incongruent evaporation of an alloy charge.
OSTI ID:
5625281
Journal Information:
Journal of Vacuum Science and Technology, A (Vacuum, Surfaces and Films); (USA), Journal Name: Journal of Vacuum Science and Technology, A (Vacuum, Surfaces and Films); (USA) Vol. 9:3; ISSN JVTAD; ISSN 0734-2101
Country of Publication:
United States
Language:
English