<span style="font-size:14.0pt;line-height: 115%;font-family:"Times New Roman";mso-fareast-font-family:"Times New Roman"; color:black;mso-ansi-language:EN-IN;mso-fareast-language:EN-IN;mso-bidi-language: HI" lang="EN-IN">Structural and dielectric properties of Pb_1-xSr_x WO₄ ceramics </span>

Abstract

<span style="font-size:14.0pt;line-height: 115%;font-family:" times="" new="" roman";mso-fareast-font-family:hiddenhorzocr;="" color:black;mso-ansi-language:en-in;mso-fareast-language:en-in;mso-bidi-language:="" hi"="" lang="EN-IN">The <span style="font-size:14.0pt;line-height:115%; font-family:" times="" new="" roman";mso-fareast-font-family:"times="" roman";="" color:black;mso-ansi-language:en-in;mso-fareast-language:en-in;mso-bidi-language:="" hi"="" lang="EN-IN">polycrystalline samples of Pb_1-xSr_x WO₄ with <i>(x </i>= 0.0; 0.05, 0.10; 0.15) have been prepared by a solid-state reaction technique. Preliminary X-ray structural analysis of the compounds indicates the formation of single-phase compound in the tetragonal crystal system at room temperature. Studies of dielectric constant (ε) and tangent <span style="font-size:14.0pt;line-height:115%;font-family:" times="" new="" roman";="" mso-fareast-font-family:hiddenhorzocr;color:black;mso-ansi-language:en-in;="" mso-fareast-language:en-in;mso-bidi-language:hi"="" lang="EN-IN">loss <span style="font-size:14.0pt;line-height:115%;font-family:" times="" new="" roman";="" mso-fareast-font-family:"times="" roman";color:black;mso-ansi-language:en-in;="" mso-fareast-language:en-in;mso-bidi-language:hi"="" lang="EN-IN">(tan δ) of the compounds as a function of frequency (400 Hz to 10kHz) and temperature (30-320^oC) suggest that compounds have non-ferroelectric property but contain space charge polarization at high temperature.</span></span></span></span>