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Production and Observation of Single Frenkel Pairs in Materials

Published online by Cambridge University Press:  28 February 2011

M. Broiler
Affiliation:
Hahn-Meitner-Institut, Berlin, W-Germany
H. HÄßlein
Affiliation:
Hahn-Meitner-Institut, Berlin, W-Germany
H. Metzner
Affiliation:
Hahn-Meitner-Institut, Berlin, W-Germany
R. Sielemann
Affiliation:
Hahn-Meitner-Institut, Berlin, W-Germany
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Abstract

Monoenergetic recoil of 29 eV on 111In atoms due to neutrino emission in combination with the microscoui PAC method is utilized to study single Frenkel pairs in materials. The 111In atoms serve as primary knock-on atoms and are simultaneously nuclear probes for PAC. In this way microscopic information on the Frenkel pair formation process and the thermal behavior of vacancies and interstitials in several fcc metals (Cu, Ag, Al) have been obtained. In semiconductor Ge an intrinsic defect - probably a monovacancy -is observed. No indication of Frenkel pair production was found in the intermetallic compound PdIn.

Type
Research Article
Copyright
Copyright © Materials Research Society 1989

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