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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 2:13 |
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Conference: Bucharest University Faculty of Physics 2001 Meeting
Section: Atomic and Molecular Physics; Astrophysics
Title:
An EPR Study of Irradiated Lithium Potassium Sulphate
Authors:
V.Nicu, M.N.Grecu*, V.V.Grecu, M.Hefni**, M.Brasoveanu***
Affiliation:
*) National Institute of Materials Physics, Bucharest.
**) Assyut University, Physics Dept., Assyut, Egypt.
***) The National Institute for Lasers, Plasma and Radiation, Bucharest
E-mail
Keywords:
Abstract:
Sulphate compounds of pure and mixed alkaline, MMSO4, have been intensively investigated by several methods due to their potential use in electro-chemical devices. Some of them present a super-ionic conductivity in their high temperature phase. EPR, besides other spectroscopic techniques, has been used to study this class of compounds [1-6]. The mixed (Li1-xKx)2SO4 compounds are interesting because they present an complicated sequence of phase transitions, whose nature is still under controversy [4-6]. We have studied the free radicals induced by electron and g-ray irradiation in a series of such powdered compounds ( x = 0.01 to 0.99). The identification of radical nature and their irradiation yield were carried out. The data are compared with the existing literature. Powder EPR spectra simulation programmes are used.
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