Ytterbium monolayer diffusion barriers at Hg(1-x)Cd(x)Te/Al junctions

Details Ytterbium monolayer diffusion barriers at Hg(1-x)Cd(x)Te/Al junctions Ytterbium monolayer diffusion barriers at Hg(1-x)Cd(x)Te/Al junctions

May 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apphl..52.1490f&link_type=abstract

Applied Physics Letters (ISSN 0003-6951), vol. 52, May 2, 1988, p. 1490-1492. Research supported by the McDonnell Douglas Indepe

Physics

4

Aluminum, Mercury Cadmium Tellurides, Particle Diffusion, Solid-Solid Interfaces, Synchrotron Radiation, Ytterbium, Photoelectric Emission, Thermodynamic Properties

Scientific paper

Single layers of Yb at the Hg(1-x)Cd(x)Te(110) interface prevent Al-Te reaction and dramatically increase the Hg concentration at the interface. Synchrotron radiation photoemission studies of the interface as a function of Al deposition show a two orders of magnitude increase in the Hg/Te core intensity ratio as a result of the interlayer-induced change in atomic interdiffusion. Calculations of thermodynamic parameters following a semiempirical alloying model suggest that other rare earths should also act as effective diffuson barriers at mercury-cadmium-telluride/reactive metal junctions.

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