Abstract
Many feldspars cannot be used in dosimetry and dating as they display anomalous fading of TSL due to tunnel recombination. With alkali feldspars, this effect is stronger with sanidines, with a 'disordered' lattice, than with microclines, with 'ordered' lattice. Comparative studies are made of tunnel luminescence, TSL, and spectra of trap depths measured by initial rise and fractional glow technique (FGT). TSL and FGT are made after X ray irradiation at LNT. In TSL, some glow peaks at 135 and 250 K are observed mostly in microclines. In FGT, the main observation is a continuous distribution of trap depths, from 100 K to 500 K, linear with temperature from nearly zero to 1.6 eV. These observations are in agreement with the 'order/disorder' situation in feldspars. It results in predominance of localised states and charge carrier migrations analogous to situations in glasses or amorphous materials.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
