Polarons in boron doped iron phosphate glasses (CROSBI ID 186080)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Filipič, Cene ; Moguš-Milanković, Andrea ; Pavić, Luka ; Karabulut, Mevlüt ; Levstik, Adrijan
engleski
Polarons in boron doped iron phosphate glasses
The electrical conductivity and dielectric properties of xB2O3–(40−x)Fe2O3–60P2O5 (x=6–20, mol%) glasses were investigated in the frequency range from 0.01 Hz to 1 MHz and the temperature range from 303 K to 523 K. At temperatures below 523 K an ac conductivity and the dielectric constant follow the universal dielectric response (UDR), being typical for hopping or tunneling of localized charge carriers. A detailed analysis of the temperature dependence of the UDR parameter s in terms of the theoretical model for tunneling of small polarons revealed that below523 K thismechanismgoverns the charge transport in these glasses. The comparison of the values of characteristic coefficientsW∞ and α determined by two different methods confirms the polaronic behavior of boron doped iron phosphate glasses.
dielectric properties ; polarons ; tunneling ; glasses
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
Podaci o izdanju
358 (20)
2012.
2793-2795
objavljeno
0022-3093
1873-4812
10.1016/j.jnoncrysol.2012.07.011