The ITC technique is exploited to search dipolar defects induced in LiF by Ti, whose valence state is not well known. ITC spectra (78-350 K) exhibit at least one peak, at 235 K. The amplitude of this peak increases with nominal Ti-concentration and annealing temperature; its shape does not depend on thermal treatment, Ti-concentration, or dopant type (TiO//2 or Li//2 TiF//6 ); it is not a single peak; and it is very weak in air-grown crystals. A critical analysis of ITC data compared with optical and EPR spectra suggests that Ti**3** plus compensated by two cation vacancies is responsible for the 235 K peak.
|Number of pages||5|
|Publication status||Published - Dec 1 1985|
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