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A New Hole Centre in Neutron Irradiated LiF Crystals
Author(s) -
Kamikawa T.
Publication year - 1990
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221590206
Subject(s) - irradiation , fluorine , neutron , ion , materials science , lithium fluoride , atom (system on chip) , spectral line , center (category theory) , atomic physics , chemistry , crystallography , nuclear physics , physics , inorganic chemistry , organic chemistry , astronomy , computer science , metallurgy , embedded system
A new colour center is observed by ESR in low temperature γ‐irradiated and then heat treated LiF crystals which are heavily neutron irradiated previously. From the analysis of the ESR spectra this center is assigned to an asymmetric interstitial fluorine atom associated with a lattice fluoride ion. This center lies in one of the (110) planes and its molecular axis makes an angle of 23° with the [110] axis. The ESR parameters are determined by fitting the calculated resonance fields to the experimental ones.