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Title: K{sub 2}YF{sub 5} crystal symmetry determined by using rare-earth ions as paramagnetic probes

Abstract

The electron paramagnetic resonance angular dependences for Gd{sup 3+} and Ce{sup 3+} centers in K{sub 2}YF{sub 5} crystals show that the Y{sup 3+} site has monoclinic C{sub h} symmetry in these crystals. This site symmetry is compatible with the crystal structure having the Pnam space group. From the zero-field splitting parameters of the Gd{sup 3+} center, it is deduced that the symmetry of the Y{sup 3+} sites is close to trigonal around the b axis, distorted by the overall orthorhombic symmetry of the crystal structure. This information is required for the identification of radiation-induced centers in this material, which shows favorable properties for applications as thermoluminescent dosimeter.

Authors:
; ; ;  [1];  [1];  [2];  [3]
  1. Department of Solid State Sciences, Ghent University, Krijgslaan 281-S1, B-9000 Gent (Belgium)
  2. (Russian Federation)
  3. Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii Prospect 31, 119991 Moscow (Russian Federation)
Publication Date:
OSTI Identifier:
20960234
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. B, Condensed Matter and Materials Physics; Journal Volume: 75; Journal Issue: 14; Other Information: DOI: 10.1103/PhysRevB.75.144427; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CERIUM IONS; CRYSTALS; ELECTRON SPIN RESONANCE; GADOLINIUM IONS; MONOCLINIC LATTICES; ORTHORHOMBIC LATTICES; PARAMAGNETISM; POTASSIUM COMPOUNDS; RARE EARTHS; SPACE GROUPS; SYMMETRY; THERMOLUMINESCENT DOSEMETERS; YTTRIUM COMPOUNDS; YTTRIUM IONS

Citation Formats

Loncke, F., Vrielinck, H., Matthys, P., Callens, F., Zverev, D., Kazan State University, Kremlevskaya 18, 420008 Kazan, and Khaidukov, N. M. K{sub 2}YF{sub 5} crystal symmetry determined by using rare-earth ions as paramagnetic probes. United States: N. p., 2007. Web. doi:10.1103/PHYSREVB.75.144427.
Loncke, F., Vrielinck, H., Matthys, P., Callens, F., Zverev, D., Kazan State University, Kremlevskaya 18, 420008 Kazan, & Khaidukov, N. M. K{sub 2}YF{sub 5} crystal symmetry determined by using rare-earth ions as paramagnetic probes. United States. doi:10.1103/PHYSREVB.75.144427.
Loncke, F., Vrielinck, H., Matthys, P., Callens, F., Zverev, D., Kazan State University, Kremlevskaya 18, 420008 Kazan, and Khaidukov, N. M. Sun . "K{sub 2}YF{sub 5} crystal symmetry determined by using rare-earth ions as paramagnetic probes". United States. doi:10.1103/PHYSREVB.75.144427.
@article{osti_20960234,
title = {K{sub 2}YF{sub 5} crystal symmetry determined by using rare-earth ions as paramagnetic probes},
author = {Loncke, F. and Vrielinck, H. and Matthys, P. and Callens, F. and Zverev, D. and Kazan State University, Kremlevskaya 18, 420008 Kazan and Khaidukov, N. M.},
abstractNote = {The electron paramagnetic resonance angular dependences for Gd{sup 3+} and Ce{sup 3+} centers in K{sub 2}YF{sub 5} crystals show that the Y{sup 3+} site has monoclinic C{sub h} symmetry in these crystals. This site symmetry is compatible with the crystal structure having the Pnam space group. From the zero-field splitting parameters of the Gd{sup 3+} center, it is deduced that the symmetry of the Y{sup 3+} sites is close to trigonal around the b axis, distorted by the overall orthorhombic symmetry of the crystal structure. This information is required for the identification of radiation-induced centers in this material, which shows favorable properties for applications as thermoluminescent dosimeter.},
doi = {10.1103/PHYSREVB.75.144427},
journal = {Physical Review. B, Condensed Matter and Materials Physics},
number = 14,
volume = 75,
place = {United States},
year = {Sun Apr 01 00:00:00 EDT 2007},
month = {Sun Apr 01 00:00:00 EDT 2007}
}