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LOW-TEMPERATURE RECOVERY OF RESISTIVITY IN ELECTRON-IRRADIATED GOLD

Journal Article · · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D
;

The results of two electron irradiations and subsequent isochronal anneals of very pure gold wire, at 13 and 10.5 deg K, respectively, were described. The anneals were carried out in 1 or 2 degree steps from the lowest temperature up to 65 deg K, and, in addition, the second set of anneals was extended for 1 hr periods at 125, 170, 225, and 260 deg K. Each of the anneals produced some recovery. The slope of the isochronal recovery curve showed peaks and indicated a first stage in the annealing, extending up to 45 deg K, during which 28.5% of the resistivity increment annealed out. From 45 to 65 deg K no distinct processes were observed. This second stage apparently continued up to 240 deg K. From 45 to 250 deg K, 36% of the resistivity increment annealed out; 35.5% remained at this temperature. By assigning a suitable frequency factor K/ sub O/ to each process in the first stage and by assuming that the processes are first order (corresponding to recombination of close pairs of vacancies and interstitial), it was possible to calculate the activation enengies for each process. For K/sub O/ = 10/sup 10/ to 10/sup 13/ sec/sup -1/, these ran ged from 0.037 to 0.045 ev for the first peak to 0.11 to 0.13 ev for the fifth. An explanation was proposed for the major differences between the annealing behavior of gold and copper. (auth)

Research Organization:
Northwestern Univ., Evanston, Ill.
NSA Number:
NSA-15-024070
OSTI ID:
4043714
Journal Information:
Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 123; ISSN PHRVA
Country of Publication:
Country unknown/Code not available
Language:
English

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Related Subjects

ANNEALING
CONTROL
COPPER
DEFECTS
ELECTRIC CONDUCTIVITY
ELECTRON BEAMS
ENERGY LEVELS
GOLD
HEATING
INTERSTITIALS
IRRADIATION
LOW TEMPERATURE
METALS, CERAMICS, AND OTHER MATERIALS
RADIATION EFFECTS
VACANCIES
WIRES