2010/07/30 by Rahul Vaish, Vaish, Rahul, K. B. R. Varma +1
Chemistry · Engineering · Materials Science · Physics and Astronomy · #Activation energy #Analytical Chemistry (journal) #Chemistry #Composite material #Condensed matter physics #Conductivity #Dielectric #Dielectric loss #Electrical engineering #Electrical resistivity and conductivity #FOS: Physical sciences #Ferroelectric and Piezoelectric Materials #Glass properties and applications #Glass transition #Materials Science (cond-mat.mtrl-sci) #Materials science #Microwave Dielectric Ceramics Synthesis #Nuclear magnetic resonance #Optoelectronics #Physical chemistry #Physics #Polymer #Relaxation (psychology) #Temperature coefficient #cond-mat.mtrl-sci
paper · pdf · doi:10.48550/arxiv.1007.5410
8 pages, 10 figures
arxiv created 2010/07/30 · openalex publication_date 2010/07/30 · arxiv updated 2010/08/02 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The frequency and temperature dependence of the dielectric constant and the electrical conductivity of the transparent glasses in the composition 0.5Cs2O-0.5Li2O-3B2O3 (CLBO) were investigated in the 100 Hz - 10 MHz frequency range. The dielectric constant for the as-quenched glass increased with increasing temperature, exhibiting anomalies in the vicinity of the glass transition and crystallization temperatures. The temperature coefficient of dielectric constant was estimated (35 ± 2 ppm.K-1) using Havinga's formula. The dielectric loss at 313 K is 0.005 ± 0.0005 at all the frequencies understudy. The activation energy associated with the electrical relaxation determined from the electric modulus spectra was found to be 1.73 ± 0.05 eV, close to that of the activation energy obtained for DC conductivity (1.6 ± 0.06 eV). The frequency dependent electrical conductivity was analyzed using Jonscher's power law. The combination of these dielectric characteristics suggests that these are good candidates for electrical energy storage device applications.