[3] Bangalore Univ, Dept Phys, Bangalore 560056, Karnataka, India
来源:
SOLID STATE PHYSICS, PTS 1 AND 2
|
2012年
/
1447卷
关键词:
Phosphate glass;
melt quenching;
dc and ac conductivity;
CONDUCTIVITY;
IONS;
D O I:
10.1063/1.4710122
中图分类号:
O59 [应用物理学];
学科分类号:
摘要:
The electrical conductivity of Li+ ion conducting lead zinc phosphate glasses have been carried out both as a function of temperature and frequency in the temperature range 458-510K and over frequencies 40 Hz to 10 MHz. The dc conductivities show Arrhenius behavior and show compositional dependence. The sigma decreases with increase in Li2O content. The ac conductivity behavior has been analyzed using Almond-West power law using a single exponent. The exponent 's' obtained from the power law fits is found to have values ranging from 0.74 - 0.80 in these glasses and shows moderate temperature dependence, which is attributed to high degree of modification in the glass network.
机构:
Department of Chemistry, Arizona State University, Tempe, AZ 85287-1604, United StatesDepartment of Chemistry, Arizona State University, Tempe, AZ 85287-1604, United States
机构:
Department of Chemistry, Arizona State University, Tempe, AZ 85287-1604, United StatesDepartment of Chemistry, Arizona State University, Tempe, AZ 85287-1604, United States