Impedance spectroscopy technique has been used to study the effect of grains and grain boundaries in a heterostructure constituted with ferromagnetic La 0.7Sr 0.3MnO 3 (LSMO) and ferroelectric Ba 0.7Sr 0.3TiO 3 (BST) layers grown by pulsed laser deposition technique on (100) oriented MgO substrate. Frequency and temperature dependence of the ...

To evaluate one potential route toward new multiferroics, we have studied 0.5% Fe-doped BaTiO3 single crystals and measured the ferroelectric, magnetic, and multiferroic properties.

Indian Journal of Pure & Applied Physics Vol. 53, January 2015, pp. 42-48 Structural and optical studies of Fe2O3 doped barium strontium titanate borosilicate glasses Avadhesh Kumar Yadav*2 & C R Gautam1 1Department of Physics, University of Lucknow, Lucknow 226 007, India 2Department of Physics, Indian Institute of Technology (BHU), Varanasi 221 005

In addition, barium strontium titanate and Zn- received a continuous attention due to their effectiveness in doped NiFe2O4 have been found to possess excellent electrical enhancing electrical and magnetic performances.11–13 and magnetic properties, respectively.28,29 In this work, the However, the high leakage current and weak magnetism make ...

Download Free PDF. Download Free PDF. Structural and Optical Properties of Iron Doped Barium Strontium Titanate. Asokan Kandasami. Download PDF. Download Full PDF Package. This paper. A short summary of this paper. ... Structural and Optical Properties of Iron Doped Barium Strontium Titanate ...

Composites based on barium titanate and nickel zinc ferrite doped with cooper and samarium were prepared by a mixing method. The formation of barium titanate tetragonal crystal structure and nickel zinc ferrite cubic spinel structure was identified. Polygonal grains were formed in all three types of ceramics. Due to the very high conductivity of ferrite phase in the materials the ferroelectric ...

1. Introduction. Lead Strontium Titanate (PST) is a ferroelectric perovskite similar to the well known Barium Strontium Titanate (BST). Its transition point between the cubic paraelectric and tetragonal ferroelectric state (Curie temperature) can be shifted linearly by varying the Pb/Sr ratio and is just below room temperature with a ratio of 40/60.

atom in barium titanate may produce ferromagnetism, inducing multiferroicity. For instance, room-temperature ferromagnetism has been reported in Mn-, Fe- and Co-doped BaTiO. 3. system. s. It has been observed that the substitution of Fe at the B-site improves the coercive field, while the

Sb and Mn- doped barium-strontium titanate PTCR ceramics Songklanakarin J. Sci. Technol., 2006, 28(3) : 669-675 In this research, the effects of surrounding powder used during sintering of Sb and Mn doped barium-strontium titanate (BST) ceramics were studied. The ceramic samples were prepared by a …

We report the magnetic properties of Ba0.99Sm0.01TiO3 (BSmT1) sample synthesized through the sol–gel process. The sample consisted of crystallites of nanometric sizes (33.2 nm). The magnetization was measured at different temperatures and different magnetic applied fields using the vibrating-sample magnetometer (VSM) technique. The curves of magnetization versus temperature at …

Barium titanate (BTO) is an inorganic compound with chemical formula BaTiO 3.Barium titanate appears white as a powder and is transparent when prepared as large crystals. It is a ferroelectric ceramic material that exhibits the photorefractive effect and piezoelectric properties. It is used in capacitors, electromechanical transducers and nonlinear optics

atom in barium titanate may produce ferromagnetism, inducing multiferroicity. For instance, room-temperature ferromagnetism has been reported in Mn-, Fe- and Co-doped BaTiO. 3. system. s. It has been observed that the substitution of Fe at the B-site improves the coercive field, while the

Bulk samples of Iron doped at B-site in (ABO 3) perovskite Barium Strontium Titanate (BaSrTiO 3) were synthesized by Solid State Reaction Route . XRD confirmed the pure perovskite phase formation.

with Y-doped barium strontium titanate nanoparticles as fillers eISSN 2514-3255 Received on 24th May 2018 Revised 20th July 2018 Accepted on 30th July 2018 E-First on 8th October 2018 doi: 10.1049/iet-nde.2018.0015 Yu-Chen Lu1,2, Shuhui Yu1, Xierong Zeng2, Rong Sun1, Ching-Ping Wong1,3

Structural and Magnetic properties of Lanthanum and Iron Doped Calcium Titanate Ca 1-x La x Ti 1-x Fe x O 3 Vandana, Anupinder Singh & Lakhwant Singh Multifunctional Materials Laboratory, Department of Physics, GND University, Amritsar, Punjab E-mail: [email protected] 15. Structural and Magnetic Properties of Iron doped Barium Strontium ...

In this paper we present first detailed EPR investigations and EPMA measurements of vanadium doped barium titanate ceramics to gain a deeper insight into the nature of the vanadium defect (incorporation site, valence state) and its solubility into the BaTiO 3 lattice for air-sintered material. 2. Experimental procedure.

This invention provides the three novel La,Fe, La,Cr and Sm,Fe substituted barium titanate solid solution ferroelectric compositions with the formula Ba 1-x Ln x Ti 1-x M x O 3 wherein when Ln is La, M is Fe or Cr, when Ln is Sm, M is Fe and x is from about 0.02 to about 0.06 and mixtures thereof, the novel La,Fe substituted barium strontium titanate solid solution ferroelectric compositions ...

In recent years, barium strontium titanate has been widely studied due to very high dielectric permittivity [6,32] and possibility to modify dielectric behavior not only by adjusting Ba/Sr ratio but by doping with different dopants. Therefore, this material has often been used as a ferroelectric part of multiferroic composite materials.

Read "Investigation of ferroelectric multilayer structures with properties of multiferroics based on barium-strontium titanate films, Physics of the Solid State" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

Finely powdered strontium and uses cookies that monitors or powder having one of using them excellent talisman for its chemical elements, and other dairy products. Amazoncom Strontium Titanate Synthesis Properties and Uses 971536154375 Tkach Oleksandr Books. These properties provide a rationale for Sr-9 as a therapeutic isotope

Barium strontium titanate (BST) with high dielectric constant and low dissipation factor have been mainly used for dielectric devices such as capacitors for dynamic random access memory [1, 2].The thin films of BST have been widely used for microwave applications such as phase shifters, tunable filters, tunable resonators, and switches [3, 4].The Co2+ ions substitute at Ti4+ site are in the ...

Artificial extrinsic and intrinsic multiferroic structures were developed in the form of yttrium-iron garnet/barium-strontium titanate bi-layers and manganese-doped barium-strontium titanate films with a relatively high doping rate in the range of 10–20 mol%. For the experimental investigations, the planar capacitors were formed on the surfaces of the structures and the …

Download Free PDF Characterization of metal (Fe, Co, Ni, Cu) and fluorine codoped barium strontium titanate thick-films for microwave applications Journal of Electroceramics, 2010

Abstract . Lead-free polycrystalline ceramics of Ba(Fe 0.5 Nb 0.5)O 3 and its solid solutions 0.91Ba(Fe 0.5 Nb 0.5)O 3-0.09BaTiO 3 (BFN-BT) and 0.91Ba(Fe 0.5 Nb 0.5)O 3-0.09SrTiO 3 (BFN-ST) were fabricated by a solid-state reaction process, and their electrical properties were characterized in a broad frequency range (100 Hz to 1 MHz) at a temperature range from 30 to 385°C.

Fe-doped (Ba. 1–x. Sr. x)TiO. 3. is usually prepared by many processes such as ball milling, solid-state reaction and sol . gel, which is used in this work etc. either in powder or thin film forms. It was suggested previously that in Fe-doped (Ba. 1–x. Sr. x)TiO. 3. micro-structural and dielectric properties were modified by controlling the ...

The dielectric constants of Fe-doped BaTiO 3 multiferroic ceramics exhibited a decrease with Fe concentration. ... A number of barium strontium titanate (BST) applications are as dynamic random ...

Barium titanate ceramics that can be doped with, e.g., Nb or La, to make them semiconducting. These materials can show very strong positive temperature coefficients (PTCs) of resistance in the region of the Curie temperature T C. 29 29. Y. L. Chen and S. F. Yang, Adv. Appl. Ceram. 110, 257 (2011).

Highlights Multiferroic Co-doped barium strontium titanate nanofibers were synthesized. The nanofibers were well-distributed with highly crystalline structure. The nanofibers showed a relatively tight structure after the annealing process. The success of Co doping was confirmed by XPS and EDS analysis. The ferromagnetic behavior was displayed by magnetic hysteresis loop.

Barium titanate compoundshavegreat researchattention due to their good electric and in some caseinterest-ing magnetic properties. The synthesis and characterizationof iron doped barium strontium titanate (BSFTO) make an attempt to understand its structure and investigate electric/dielectric properties. The formation of a

Single-and multiphase ferroics and multiferroics with restricted geometries" Conference . ... Thermo-Raman spectroscopy study of phase transitions in barium and strontium titanate nanostructures ... (Sm, Fe)-doped PbTiO. 3. perovskite ceramics . F. Craciun, E. Dimitriu, M. Grigoras, N. Lupu and M. Cernea . O 16 13.00 . Lunch.

However, dilute doping of Fe strengthens the Fe-Mn interactions which in turn enhances the polarization. Also, Fe +3 and Mn +4 possesses similar ionic radius but bigger difference in spin moment and thus it would be a proper choice to investigate the Fe …