Thermal Neutron Irradiation of LiNbO3 Crystals Doped with Hf and Hfmg

1996 ◽  
Vol 439 ◽  
Author(s):  
J. G. Marques ◽  
A. Kling ◽  
J. C. Soares ◽  
M. F. Da Silva ◽  
E. Diétguez ◽  
...  

AbstractThe effects of irradiation with thermal neutrons on LiNbO3 single crystals doped with Hf and Hf,Mg were studied with ion beam and hyperfme interaction techniques, using Hf as a probe. In crystals where Hf occupies both Li and Nb sites, the fraction in Nb sites is strongly reduced after irradiation. The initial situation is recovered after thermal annealing at 973 K, in air.

1998 ◽  
Vol 12 (25n26) ◽  
pp. 1097-1109
Author(s):  
M. Honciuc ◽  
E. Slavnicu

The paper describes the influence of thermal neutron irradiation on the smectic liquid crystal (SLC) properties of fatty acids: lauric, archydic, elaidic and arachidonic. These fatty acids are precursors or constituents of biological membranes. Microstructural aspects and electric measurements of the dependence of current intensity through the sample on the applied external voltage I=I(U) are presented. An outline of a thermodynamic model in good agreement with the experiments is also given.


2020 ◽  
Vol 31 (11) ◽  
pp. 8496-8501
Author(s):  
Indudhar Panduranga Vali ◽  
Pramoda Kumara Shetty ◽  
M. G. Mahesha ◽  
Mala N. Rao ◽  
Swayam Kesari

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