TY - JOUR
T1 - Structural, conductivity and dielectric properties of europium trioxide doped lead boro-tellurite glasses
AU - Devaraja, C.
AU - Gowda, G. V.Jagadeesha
AU - Eraiah, B.
AU - Talwar, Asha M.
AU - Dahshan, A.
AU - Nazrin, S. N.
N1 - Funding Information:
The author (A. Dahshan) extends his appreciation to the Deanship of Scientific Research at King Khalid University , Saudi Arabia for the financial support through research groups program under grant number ( RGP.2/89/42 ).
Publisher Copyright:
© 2021 Elsevier B.V.
PY - 2022/3/25
Y1 - 2022/3/25
N2 - A very rare set of glasses having chemical compositions of B2O3-TeO2-Na2O-PbO, doped with europium trioxide were obtained by the conventional melt quenching procedure. An X-ray diffractometer was run to confirm the non-crystalline nature of the structural studies. The AC conductivity and dielectric properties of glasses were studied in the temperature range 343–483 K with a 40 Hz to 6 MHz frequency range. The Almond–West model of power-law suggests, the well-fitting of found AC conductivity values and conductivity is due to translational motions of carriers. AC conductivity decreases with increasing concentration of Eu2O3. The non-Debye type of relaxations was predicted by AC conductivity plots. The dielectric constant and dielectric loss of complex permittivity was measured and obtained values suggested that the phenomenon of dielectric relaxation is mainly subjected to the frequency-dependent polarization mechanism. The obtained power-law exponent values indicate the AC conductivity mechanism and follow the CBH model.
AB - A very rare set of glasses having chemical compositions of B2O3-TeO2-Na2O-PbO, doped with europium trioxide were obtained by the conventional melt quenching procedure. An X-ray diffractometer was run to confirm the non-crystalline nature of the structural studies. The AC conductivity and dielectric properties of glasses were studied in the temperature range 343–483 K with a 40 Hz to 6 MHz frequency range. The Almond–West model of power-law suggests, the well-fitting of found AC conductivity values and conductivity is due to translational motions of carriers. AC conductivity decreases with increasing concentration of Eu2O3. The non-Debye type of relaxations was predicted by AC conductivity plots. The dielectric constant and dielectric loss of complex permittivity was measured and obtained values suggested that the phenomenon of dielectric relaxation is mainly subjected to the frequency-dependent polarization mechanism. The obtained power-law exponent values indicate the AC conductivity mechanism and follow the CBH model.
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U2 - 10.1016/j.jallcom.2021.162967
DO - 10.1016/j.jallcom.2021.162967
M3 - Article
AN - SCOPUS:85120424065
SN - 0925-8388
VL - 898
JO - Journal of the Less-Common Metals
JF - Journal of the Less-Common Metals
M1 - 162967
ER -