Ytterbium monolayer diffusion barriers at Hg/sub 1-//sub x/Cd/sub x/Te/Al junctions
Journal Article
·
· Appl. Phys. Lett.; (United States)
Single layers of Yb at the Hg/sub 1-//sub x/Cd/sub 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 diffusion barriers at mercury-cadmium-telluride/reactive metal junctions.
- Research Organization:
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55445
- OSTI ID:
- 5329040
- Journal Information:
- Appl. Phys. Lett.; (United States), Vol. 52:18
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
ALUMINIUM
CHEMICAL REACTIONS
DIFFUSION
CADMIUM TELLURIDES
DIFFUSION BARRIERS
MERCURY TELLURIDES
TELLURIUM
YTTERBIUM
ATOM TRANSPORT
ALUMINIUM TELLURIDES
INTERFACES
PHOTOEMISSION
SYNCHROTRON RADIATION
THIN FILMS
ALUMINIUM COMPOUNDS
BREMSSTRAHLUNG
CADMIUM COMPOUNDS
CHALCOGENIDES
ELECTROMAGNETIC RADIATION
ELEMENTS
EMISSION
FILMS
MERCURY COMPOUNDS
METALS
NEUTRAL-PARTICLE TRANSPORT
RADIATION TRANSPORT
RADIATIONS
RARE EARTHS
SECONDARY EMISSION
SEMIMETALS
TELLURIDES
TELLURIUM COMPOUNDS
360104* - Metals & Alloys- Physical Properties
ALUMINIUM
CHEMICAL REACTIONS
DIFFUSION
CADMIUM TELLURIDES
DIFFUSION BARRIERS
MERCURY TELLURIDES
TELLURIUM
YTTERBIUM
ATOM TRANSPORT
ALUMINIUM TELLURIDES
INTERFACES
PHOTOEMISSION
SYNCHROTRON RADIATION
THIN FILMS
ALUMINIUM COMPOUNDS
BREMSSTRAHLUNG
CADMIUM COMPOUNDS
CHALCOGENIDES
ELECTROMAGNETIC RADIATION
ELEMENTS
EMISSION
FILMS
MERCURY COMPOUNDS
METALS
NEUTRAL-PARTICLE TRANSPORT
RADIATION TRANSPORT
RADIATIONS
RARE EARTHS
SECONDARY EMISSION
SEMIMETALS
TELLURIDES
TELLURIUM COMPOUNDS
360104* - Metals & Alloys- Physical Properties