Crucial role of residual gases in amorphization of crystalline films
Journal Article
·
· Phys. Rev. B: Condens. Matter; (United States)
A series of recent studies has claimed the amorphization of a crystalline multilayer film by a solid-state reaction during a vacuum anneal. The present study on Ni-Zr alloys establishes in two ways that the residual gases present in a vacuum system ((4--6 x 10/sup -7/ Torr) play an important role in the amorphization process. First, the superconducting transition temperature (which is sensitive to such residual gases) of as-deposited amorphous Ni-Zr films decreases and eventually vanishes during annealing treatments similar to those used in the amorphization of multilayers. The amorphized multilayers are superconducting at much lower temperatures than amorphous films of similar compositions. Second, annealing the multilayers in such a way as to avoid the effect of residual gases (in situ annealing in a protective getter-sputtering atmosphere) does not lead to amorphization.
- Research Organization:
- ATandT Bell Laboratories, Murray Hill, New Jersey 07974
- OSTI ID:
- 5315987
- Journal Information:
- Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 32:5; ISSN PRBMD
- Country of Publication:
- United States
- Language:
- English
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Thesis/Dissertation
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Mon Dec 31 23:00:00 EST 1990
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OSTI ID:6987376
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Journal Article
·
Mon Jul 03 00:00:00 EDT 1989
· Appl. Phys. Lett.; (United States)
·
OSTI ID:6095662
Role of interface in ion mixing or thermal annealing induced amorphization in multilayers in some immiscible systems
Book
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Mon Dec 30 23:00:00 EST 1996
·
OSTI ID:477380
Related Subjects
36 MATERIALS SCIENCE
360102 -- Metals & Alloys-- Structure & Phase Studies
360104* -- Metals & Alloys-- Physical Properties
656102 -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALLOY SYSTEMS
ALLOYS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
AMORPHOUS STATE
ANNEALING
BINARY ALLOY SYSTEMS
CHALCOGENIDES
CONTAMINATION
CORUNDUM
CRYSTAL-PHASE TRANSFORMATIONS
CRYSTALS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
FILMS
HEAT TREATMENTS
MINERALS
NICKEL ALLOYS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
PROBES
SAPPHIRE
SUBSTRATES
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
THIN FILMS
TRANSITION TEMPERATURE
ZIRCONIUM ALLOYS
360102 -- Metals & Alloys-- Structure & Phase Studies
360104* -- Metals & Alloys-- Physical Properties
656102 -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALLOY SYSTEMS
ALLOYS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
AMORPHOUS STATE
ANNEALING
BINARY ALLOY SYSTEMS
CHALCOGENIDES
CONTAMINATION
CORUNDUM
CRYSTAL-PHASE TRANSFORMATIONS
CRYSTALS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
FILMS
HEAT TREATMENTS
MINERALS
NICKEL ALLOYS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
PROBES
SAPPHIRE
SUBSTRATES
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
THIN FILMS
TRANSITION TEMPERATURE
ZIRCONIUM ALLOYS