Defect trapping of ion-implanted deuterium in Fe
The trapping of ion-implanted deuterium (D) by lattice damage in Fe was investigated in the temperature range 90--500 K. The D depth profile was determined by measuring the proton yield from the /sup 3/He-excited nuclear reaction D(/sup 3/He,p)/sup 4/He, and the D lattice location was obtained by ion channeling. Linear ramping of the temperature produced a sharp detrapping stage at 260 K and a broader release extending over 350--450 K. The release-vs-temperature data were analyzed by solving the diffusion equation with appropriate trapping terms, yielding 0.48 and approx. =0.81 eV for the binding enthalpies associated with the two stages. The 0.48-eV trap corresponds to D at a near-octahedral interstitial site, where it is believed to be associated with a vacancy.
- Research Organization:
- Sandia Laboratories, Albuquerque, New Mexico 87185
- OSTI ID:
- 6103360
- Journal Information:
- J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 50:9; ISSN JAPIA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360106* -- Metals & Alloys-- Radiation Effects
CHANNELING
CHARGED PARTICLES
CHARGED-PARTICLE REACTIONS
CRYSTAL DEFECTS
CRYSTAL LATTICES
CRYSTAL STRUCTURE
DAMAGE
DATA
DEUTERIUM IONS
DIFFUSION
ELEMENTS
ENERGY-LEVEL TRANSITIONS
EQUATIONS
EVEN-ODD NUCLEI
EXCITATION
HELIUM 3
HELIUM 3 REACTIONS
HELIUM ISOTOPES
INFORMATION
ION IMPLANTATION
IONS
IRON
ISOTOPES
LIGHT NUCLEI
LOW TEMPERATURE
MEDIUM TEMPERATURE
METALS
NUCLEAR REACTIONS
NUCLEI
STABLE ISOTOPES
TEMPERATURE DEPENDENCE
TRANSITION ELEMENTS
TRAPPING