Turkish Journal of Physics
DOI
-
Abstract
A series of Li_{0.5} Fe_{x} Ga_{2.5 - x} O_{4} systems were prepared for x = 0, 0.25, 0.5, 0.75 and 1 by the general ceramic method. X-ray diffraction showed that all compositions have single phase Spinel cubic structure. The lattice parameter increased with enhancing iron concentration. The thermoelectric coefficient decreased with increasing x, and the majority carriers are holes. The increase of the jump length of hole increased the electrical conductivity. Jump-length increased with iron concentration and the rate of jumping gave rise to the electrical conductivity. The concentration of Fe^{3 +} ions in Lithium gallate is important, for such structures may have application in communication technology.
Keywords
Ferrite, jump length, jump rate, lattice parameter, hopping conduction
First Page
25
Last Page
30
Recommended Citation
TAWFIK, ABD EL-RAOUF; TASHTOUSH, N.; and HEMEDA, O.M. (2004) "Effect of Iron Concentrations on Some Physical Properties of the System Li_{0.5}Fe_{x}Ga_{2.5 - x}O_{4}," Turkish Journal of Physics: Vol. 28: No. 1, Article 3. Available at: https://journals.tubitak.gov.tr/physics/vol28/iss1/3
