Fe concentration dependent transport properties of LiI–AgI–B2O3 glass system

The role of vanadium valence states and coordination on electrical conduction in lithium iodide borate glasses mixed with small concentration of silver iodide

“…AgI and LiI do act as modifiers like any conventional modifiers and create bonding defects. In some of the recent investigations it has also been reported that Ag + and Li + ions in oxysalt glass matrices experience mixed oxygen-iodine coordination and do not induce any defects in the glass network [16,17]. According to this model AgI and LiI mainly act to expand the glass network and increase in the accessible volume for the fraction of mobile charge carriers [18].…”

Investigations on electrical conductivity and dielectric properties of Na doped ZnO synthesized from sol gel method

“…The decrease in ' with the frequency of the investigated samples may be attributed mainly to the decreasing number of dipoles which contribute to polarization or either to the inability of dipoles to rotate rapidly leading to a lag between frequency of oscillating dipole and that of applied field [ 70]. In addition, at higher frequency, ' approaches a constant value which probably results from rapid polarization processes occurring [71]. The variation of the imaginary part of the permittivity with frequency is shown in Fig.…”

Thermal, structural and magnetic properties of some zinc phosphate glasses doped with manganese ions

“…Glasses containing transition metal ions (TMI) have attracted much attention due to their electrical [1][2][3][4][5][6][7], optical [8][9][10][11][12][13] and magnetic properties [14][15][16][17] which render them suitable for large practical and potential applications in many fields such as memory switching [18,19] electronics [5,6,12,15], catalysis [20][21][22] and magnetic information storage [10,14,16]. These properties of the TMI glasses arise from the presence of TMI in multivalent states [4,[23][24][25][26].…”