Microstructure and dielectric properties of BaxSr1−xTiO3 ceramics

Fu, Chunlin; Yang, Chengtao; Chen, Hongwei; Wang, Yinxin; Hu, Liye

doi:10.1016/j.mseb.2005.02.056

Cited by 74 publications

(49 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The tetragonality ratio is found to be the highest in the films grown on epitaxial Pt layer. The c/a ratio obtained for the films grown on epitaxial substrate is similar to the values found in literature for bulk BST [13][14][15] and is slightly lower than the values obtained in the BST films grown on MgO substrate. 16 For a qualitative characterization of the films orientation, the following equation was used: 17…”

Section: -2supporting

confidence: 86%

Effect of Pt bottom electrode texture selection on the tetragonality and physical properties of Ba0.8Sr0.2TiO3 thin films produced by pulsed laser deposition

Silva¹,

Sekhar²,

Almeida³

et al. 2012

Journal of Applied Physics

View full text Add to dashboard Cite

Electric field induced instabilities of thin leaky bilayers: Pathways to unique morphologies and miniaturization J. Chem. Phys. 138, 024705 (2013) Electric field-tunable BaxSr1−xTiO3 films with high figures of merit grown by molecular beam epitaxy Appl. Phys. Lett. 101, 252906 (2012) The penetration limit of poly(4-vinyl phenol) thin films for etching via holes by inkjet printing Appl. Phys. Lett. 101, 253302 (2012) The penetration limit of poly(4-vinyl phenol) thin films for etching via holes by inkjet printing APL: Org. Electron. Photonics 5, 270 (2012) Numerical simulations of electrostatic interactions between an atomic force microscopy tip and a dielectric sample in presence of buried nano-particles J. Appl. Phys. 112, 114313 (2012) Additional information on J. Appl. Phys. The effect of platinum (Pt) bottom electrode texture on the tetragonality, dielectric, ferroelectric, and polarization switching response of pulsed laser deposited Ba 0.8 Sr 0.2 TiO 3 (BST) thin films has been studied. The x-ray diffraction and Raman analysis revealed the higher tetragonality of BST films when they were grown on higher (111) textured Pt layer. The properties like dielectric permittivity, polarization, switching time, and leakage currents were found to be correlated to tetragonality and orientation of the BST films. The polarization current was observed to be higher in BST films on Pt epitaxial layer and it exhibits exponential dependence on the electric field. The voltage-current measurements displayed Ohmic behavior of leakage current irrespective of Pt texture for low voltages (up to 1 V), whereas at higher voltages the conduction mechanism was found to be dependent on texture selection of bottom Pt electrode. V C 2012 American Institute of Physics. [http://dx

show abstract

Section: -2supporting

confidence: 86%

Effect of Pt bottom electrode texture selection on the tetragonality and physical properties of Ba0.8Sr0.2TiO3 thin films produced by pulsed laser deposition

Silva¹,

Sekhar²,

Almeida³

et al. 2012

Journal of Applied Physics

View full text Add to dashboard Cite

show abstract

“…This confirms the formation of a single phase perovskite BST structure. All peaks are indexed corresponding to its reflections of different polycrystalline orientations [28,33,35] as indicated with (110) index as the high intensity major peak. Figure 6 Shows variations of the ultrasonic attenuation, α, with temperature for x=0.05 and 0.2, sintered at 1250°C for 2 h. This figure reveals a well-defined damping peaks at 320 and 285°C for x=0.05 and 0.2, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…A linear dependence of Curie temperature, T c , on the stoichiometric percentage of Ba, x, in the form: T c C ð Þ¼ À 195:0 þ 322:2x, has been reported [28]. On the other hand and to our knowledge, mechanical investigations are scarce and limited to some published work dealt with mechanical losses (internal frictions) and shear moduli of Ba (x) Sr (1-x) TiO 3 (x=0.4, 0.55, 0.7, 0.8) at the low frequency range 0.1-1 Hz with an inverted pendulum [21][22][23]29].…”

Section: Introductionmentioning

confidence: 97%

Structural and mechanical properties characterization of barium strontium titanate (BST) ceramics

et al. 2011

View full text Add to dashboard Cite

Ba (1-x) Sr (x) TiO 3 ceramics, where x=0.05, 0.10, 0.15, and 0.20, were prepared by solid state reaction technique. X-ray diffraction analysis confirmed the formation of single phase perovskite structures. Mechanical properties such as ultrasonic attenuation, longitudinal wave velocity, and longitudinal elastic modulus were studied by an ultrasonic pulse echo technique at 2 MHz. Investigations of ceramic microstructures and mechanical properties showed its dependence on composition and sintering time. Increasing of Sr content, x, resulted in a decrease in bulk density and ultrasonic attenuation and an increase in velocity and modulus. Also, size of crystallites and c/a ratio were found to decrease with increasing of x, and increased with increasing of sintering time. High temperature ultrasonic studies showed, in addition to Curie phase transition, two relaxation peaks and its origin was investigated. The acquired structural and mechanical results were correlated and discussed.

show abstract

“…A well known solid solution of both BaTiO 3 and SrTiO 3 is barium strontium titanate (Ba 1−x S r x TiO 3 or BSxT), has been considered to be an important material for tunable microwave devices such as phase shifters, tunable filters, delay lines, tunable oscillators, induced piezoelectric transducer etc. This because of its high dielectric constant, large electric field tunabilities, relatively low dielectric loss, variable Curie temperature (from 243 to 127 °C) depending on the composition of strontium, large polarizations, large permittivity and large induced strains that are achievable [10][11][12][13]. On the other hand, it is known that all the above mentioned properties are basically influenced by the temperature and the frequency in perovskite structure-type materials.…”

Section: Introductionmentioning

confidence: 99%

Complex impedance, dielectric relaxation and electrical conductivity studies of Ba_1-xSr_xTiO₃ceramics

Elbasset

S²,

Abdi

et al. 2017

IOP Conf. Ser.: Mater. Sci. Eng.

View full text Add to dashboard Cite

Abstract. In this work, we prepared series of Ba 1-x Sr x TiO 3 (BS x T) powders, with different strontium concentrations (x = 0, 0.025, 0.75, 0.10, 0.125 and 0.15), by the sol-gel method. The variation of structure in the Ba1-xSrxTiO3 system was analyzed using XRD and Raman techniques. The field dependence of dielectric relaxation and conductivity was measured over a wide frequency range from room temperature to 400 °C. The activation energy, calculated from the thermal variation of the conductivity for different frequencies, showed that the Sr has significant effects on the properties of BaTiO 3 . Relaxation times extracted using the imaginary part of the complex impedance (Z''(ω)) and the modulus (M''(ω)) were also found to follow the Arrhenius law and showed an anomaly around the phase transition temperature.

show abstract

Microstructure and dielectric properties of BaxSr1−xTiO3 ceramics

Cited by 74 publications

References 5 publications

Effect of Pt bottom electrode texture selection on the tetragonality and physical properties of Ba0.8Sr0.2TiO3 thin films produced by pulsed laser deposition

Effect of Pt bottom electrode texture selection on the tetragonality and physical properties of Ba0.8Sr0.2TiO3 thin films produced by pulsed laser deposition

Structural and mechanical properties characterization of barium strontium titanate (BST) ceramics

Complex impedance, dielectric relaxation and electrical conductivity studies of Ba_1-xSr_xTiO₃ceramics

Contact Info

Product

Resources

About

Microstructure and dielectric properties of BaxSr1−xTiO3 ceramics

Cited by 74 publications

References 5 publications

Effect of Pt bottom electrode texture selection on the tetragonality and physical properties of Ba0.8Sr0.2TiO3 thin films produced by pulsed laser deposition

Effect of Pt bottom electrode texture selection on the tetragonality and physical properties of Ba0.8Sr0.2TiO3 thin films produced by pulsed laser deposition

Structural and mechanical properties characterization of barium strontium titanate (BST) ceramics

Complex impedance, dielectric relaxation and electrical conductivity studies of Ba1-xSrxTiO3ceramics

Contact Info

Product

Resources

About

Complex impedance, dielectric relaxation and electrical conductivity studies of Ba_1-xSr_xTiO₃ceramics