Improved high Q value of (1−x)Ca(Mg1/3Ta2/3)O3–xCa0.8Sm0.4/3TiO3 solid solution with zero temperature coefficient of resonant frequency

Microwave-hydrothermal synthesis of barium strontium titanate nanoparticles

“…Barium titanate has been extensively employed in several industrial applications, including dynamic random access memory (DRAM) capacitor, microwave filters, infrared detectors and dielectric phase shifters, due to their excellent ferroelectric, dielectric, piezoelectric and pyroelectric properties [1][2][3][4][5][6][7][8]. For the ABO 3 perovskite, different A-site and B-site dopants (where A = Ca, Sr, La; B = Nb, Ta, Zr) are used to modify the electrical properties of BaTiO 3 based compositions [6][7][8][9].…”

“…For the ABO 3 perovskite, different A-site and B-site dopants (where A = Ca, Sr, La; B = Nb, Ta, Zr) are used to modify the electrical properties of BaTiO 3 based compositions [6][7][8][9]. Recently, barium strontium titanate (BST) has attracted much attention because of its strong dielectric nonlinearity under biaselectric field and linearly adjustable Curie temperature with the strontium content over a wide temperature range [9][10][11].…”

Sol–gel synthesis and characterization of Ba(1−)Sr TiO3 ceramics

“…There is a singular grain growth for all the ceramics after sintered at T s2 . The average grain size, which belongs to coarse-grained category [7], is 40 m, 20 m, 30 m and 10 m for the Ba (1−x) Sr x TiO 3 ceramics at x = 0, x = 0.01, x = 0.02 and x = 0.03, respectively. With the sintered temperature rising to T s3 , the grain size of the Ba (1−x) Sr x TiO 3 ceramics at x = 0, x = 0.01, x = 0.02 and x = 0.03 increase to 50 m, 50 m, 40 m and 30 m, respectively.…”

“…For the ABO 3 perovskite, different A-site and B-site dopants (where A = Ca, Sr, La; B = Nb, Ta, Zr) are used to modify the electrical properties of BaTiO 3 based compositions [6][7][8][9].…”

High tunability of pulsed laser deposited Ba0.7Sr0.3TiO3 thin films on perovskite oxide electrode

“…The tunable devices such as varactors, filters, oscillators, and phase shifters make use of the nonlinearity of the internal electrical polarization, of ferroelectric materials, steerable by an external electric field [1][2][3][4]. Compared to the popular tuning elements such as p-i-n diodes, GaAs Schottky diodes or ferromagnetics, ferroelectric components offer the advantages of continuous, quick, low power tunability up to gigahertz frequencies [5,6].…”