scholarly journals Electron Paramagnetic Resonance and Optical Studies of Thermoluminescence Processes in Mn-Doped YAlO3 Single Crystals

Author(s):  
Hanka Przybylińska ◽  
Yaroslav Zhydachevskyy ◽  
Aneta Grochot ◽  
Agnieszka Wołoś ◽  
Vasyl Stasiv ◽  
...  
1996 ◽  
Vol 51 (4) ◽  
pp. 245-248
Author(s):  
Geetha Jayaram ◽  
V. G. Krishnan

Abstract Electron Paramagnetic Resonance (EPR) studies have been carried out on the vanadyl (VO2) ion doped in single crystals of ZnTiF6 • 6H2O. The spectra indicate the presence of one set of eight lines characteristic of only one occupation site. The V-O bond orientation is along one of the three Zn-H2O bond directions in the trigonally distorted [Zn(H2O)6] octahedra. This behaviour is unlike that reported for vanadyl ion substituting for the M(H2O)6 sites in the Tutton salts, alums and AlCl3 • 6H2O. The Spin-Hamiltonian and bonding parameters for the [VO(H2O)5] complex have been evaluated. The hyperfine linewidths are 0.8 mT at 300 K and 77 K. No proton superhyperfine structure was observed at both these temperatures.


1982 ◽  
Vol 46 (3) ◽  
pp. 374-384
Author(s):  
J.E.Rodas Duran ◽  
H Panepucci ◽  
Horacio A Farach ◽  
Charles P Poole

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