Phonon softening in Ni/sub 46. 8/Ti/sub 50/Fe/sub 3. 2/
Journal Article
·
· Phys. Rev. B: Condens. Matter; (United States)
Inelastic neutron scattering has been used to study the premartensitic phase transition in NiTi:Fe. A phonon softening of the (110)-TA/sub 2/ branch near q/sub I/ = ((1/3),(1/3),0) has been observed. This is near the wave vector where incommensurate superlattice peaks appear below the premartensitic-phase-transition temperature of 232 K. This phonon softening can be understood in terms of a Fermi-surface-driven electron-phonon anomaly.
- Research Organization:
- Brookhaven National Laboratory, Upton, New York 11973
- OSTI ID:
- 6706193
- Journal Information:
- Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 29:11; ISSN PRBMD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ALLOYS
COHERENT SCATTERING
CRYSTAL-PHASE TRANSFORMATIONS
CRYSTALS
DATA
DIFFRACTION
DISPERSION RELATIONS
ELECTRON-PHONON COUPLING
EXPERIMENTAL DATA
INELASTIC SCATTERING
INFORMATION
IRON ALLOYS
MEDIUM TEMPERATURE
MONOCRYSTALS
NEUTRON DIFFRACTION
NICKEL ALLOYS
NUMERICAL DATA
PHASE TRANSFORMATIONS
SCATTERING
SUPERLATTICES
TITANIUM ALLOYS
360104* -- Metals & Alloys-- Physical Properties
ALLOYS
COHERENT SCATTERING
CRYSTAL-PHASE TRANSFORMATIONS
CRYSTALS
DATA
DIFFRACTION
DISPERSION RELATIONS
ELECTRON-PHONON COUPLING
EXPERIMENTAL DATA
INELASTIC SCATTERING
INFORMATION
IRON ALLOYS
MEDIUM TEMPERATURE
MONOCRYSTALS
NEUTRON DIFFRACTION
NICKEL ALLOYS
NUMERICAL DATA
PHASE TRANSFORMATIONS
SCATTERING
SUPERLATTICES
TITANIUM ALLOYS