Search engine for discovering works of Art, research articles, and books related to Art and Culture
Javascript must be enabled to continue!
Rietveld analysis, dielectric and magnetic properties of Sr and Ti codoped BiFeO3 multiferroic
View through CrossRef
Polycrystalline Bi0.8Sr0.2Fe1 − xTixO3 (x = 0.0, 0.1, 0.2) multiferroics were synthesized via the conventional solid state reaction method. The structure, dielectric relaxation, and magnetic properties of as prepared samples were investigated. The crystal structure examined via XRD and Rietveld analysis confirmed a single phase rhombohedral (space group R3c no. 161) structure. In the Rietveld refinement, good agreement between the observed and calculated pattern was observed. The dielectric response of these multiferroics was analyzed in the frequency range of 10 Hz to 5 MHz at different temperatures. All the samples showed dispersion in dielectric constant (έ) and dielectric loss factor (tan δ) values. The temperature dependence of έ and tan δ showed broad peaks. A reduction in the values of έ and tan δ was observed upon the incorporation of Ti. Magnetic measurements were carried out at room temperature up to a field of 20 kOe. Magnetic hysteresis loops revealed a significant increase in magnetization with Ti substitution. A remnant magnetization (Mr) of 33.428 memu/g and a coercive field (Hc) of 1.724 kOe were observed in the sample with x = 0.2.
Title: Rietveld analysis, dielectric and magnetic properties of Sr and Ti codoped BiFeO3 multiferroic
Description:
Polycrystalline Bi0.
8Sr0.
2Fe1 − xTixO3 (x = 0.
0, 0.
1, 0.
2) multiferroics were synthesized via the conventional solid state reaction method.
The structure, dielectric relaxation, and magnetic properties of as prepared samples were investigated.
The crystal structure examined via XRD and Rietveld analysis confirmed a single phase rhombohedral (space group R3c no.
161) structure.
In the Rietveld refinement, good agreement between the observed and calculated pattern was observed.
The dielectric response of these multiferroics was analyzed in the frequency range of 10 Hz to 5 MHz at different temperatures.
All the samples showed dispersion in dielectric constant (έ) and dielectric loss factor (tan δ) values.
The temperature dependence of έ and tan δ showed broad peaks.
A reduction in the values of έ and tan δ was observed upon the incorporation of Ti.
Magnetic measurements were carried out at room temperature up to a field of 20 kOe.
Magnetic hysteresis loops revealed a significant increase in magnetization with Ti substitution.
A remnant magnetization (Mr) of 33.
428 memu/g and a coercive field (Hc) of 1.
724 kOe were observed in the sample with x = 0.
2.
Related Results
Hydrogen Peroxide-Assisted Hydrothermal Synthesis of BiFeO3 Microspheres and Their Dielectric Behavior
Hydrogen Peroxide-Assisted Hydrothermal Synthesis of BiFeO3 Microspheres and Their Dielectric Behavior
Despite considerable efforts undertaken in a rapidly developing area of multiferroic research, synthesis of phase pure BiFeO3 is still a matter of intensive research. In this work,...
Dielectric relaxations and dielectric response in multiferroic BiFeO3 ceramics
Dielectric relaxations and dielectric response in multiferroic BiFeO3 ceramics
Single-phase multiferroic BiFeO3 ceramics were fabricated using pure precipitation-prepared BiFeO3 powder. Dielectric response of BiFeO3 ceramics was investigated over a wide range...
Electric field controlled magnetization and terahertz spin current pulse in artificial multiferroic systems
Electric field controlled magnetization and terahertz spin current pulse in artificial multiferroic systems
Nanomagnets are the stable component of non-volatile magnetic memories, where the binary bit is stored in different magnetization state to store the information. In the past, many ...
Characterization and Photovoltaic Properties of BiFeO3 Thin Films
Characterization and Photovoltaic Properties of BiFeO3 Thin Films
Bismuth ferrite (BiFeO3) thin films were prepared by a spin-coating method. Crystal structure and optical properties of the BiFeO3 films were evaluated using X-ray diffraction. The...
Thermodynamics of multiferroic BiFeO3: Applications for the deposition of BiFeO3 thin films
Thermodynamics of multiferroic BiFeO3: Applications for the deposition of BiFeO3 thin films
The formation enthalpy of BiFeO3 from oxides is studied by density-functional theory. It is predicted to be a small negative value by local density approximation plus U calculation...
Magnetization dynamics in ferromagnetic coupling interconnect wire using multiferroic logic scheme
Magnetization dynamics in ferromagnetic coupling interconnect wire using multiferroic logic scheme
Nowadays, the intense research effort is focused on exploring alternative emerging device to perform binary logical function. A promising device technology is multiferroic nanomagn...
Atomic scale insights on the growth of BiFeO3 nanoparticles
Atomic scale insights on the growth of BiFeO3 nanoparticles
AbstractThis study provides new insights on the formation of the nanocrystallites of phase pure BiFeO3 prepared using sol–gel method with tartaric acid as the fuel as comprehended ...
Controlling the exchange bias in multiferroic BiFeO3 and NiFe bilayers
Controlling the exchange bias in multiferroic BiFeO3 and NiFe bilayers
We have investigated how the exchange bias and coercive field of NiFe/BiFeO3 bilayers on (001)SrTiO3 is affected by changes in substrate temperature, oxygen pressure, and film thic...