The congruent melting composition of strontium barium niobate

Strontium–barium niobate single crystals, growth and ferroelectric properties

“…The reason to investigate SBN with different compositions is a gradual crossover from typical ferroelectric (SBN40) to extreme relaxor (SBN75). This material is of special interest because of its low-phase transition temperature from 50 to 150 1C depending on concentration of Sr [1]. Much attention is being paid to SBN crystals because of their other properties like large electro-optic and pyroelectric coefficients, and good photorefractive and acousto-optic parameters [2].…”

Impedance spectroscopy study of NaBa2V5O15 ceramic

“…[3][4][5][6][7]. This includes piezoelectric transducers and actuators, non-volatile ferroelectric memories, dielectric for microelectronics and wireless communication, pyroelectric arrays and non-linear optical applications [8][9][10].…”

Growth of strontium barium niobate: the liquidus–solidus phase diagram

“…SBN crystallizes in a tetragonal tungsten bronze structure over a wide solid solution range. During the first investigations on SBN [1,[8][9][10][11], a phase diagram was established [12] with a congruently melting composition at x ¼ 0:5: Later, more specialized investigations [13] crystal growth at such a composition is greatly facilitated, practically all publications up to now deal with properties of SBN with x ¼ 0:61: Due to the different ionic sizes of strontium and barium, however, which give rise to different preferred sites in the unfilled tungsten bronze structure [10,14], all physical properties of SBN are composition dependent. The properties of SBN thus could be tailored in a certain range choosing an appropriate composition.…”