A5003975684- Multiferroics and related materials
- Ferroelectric and Piezoelectric Materials
- Dielectric properties of ceramics
- Magnetic Properties and Synthesis of Ferrites
- Dielectric materials and actuators
- Magnetic and transport properties of perovskites and related materials
- Advanced Condensed Matter Physics
- Magneto-Optical Properties and Applications
- Microwave Dielectric Ceramics Synthesis
- Advanced Sensor and Energy Harvesting Materials
- Karst Systems and Hydrogeology
- Innovations in Concrete and Construction Materials
- Fiber-reinforced polymer composites
- Conducting polymers and applications
- Crystallization and Solubility Studies
- Teratomas and Epidermoid Cysts
- X-ray Diffraction in Crystallography
- Composite Material Mechanics
Manipur University
2019-2024
Indian Institute of Technology Roorkee
2010-2015
Single-phase Bi(0.80)La(0.20)FeO(3) (BLFO) and Bi(0.80)La(0.20)Fe(1-x)Nb(x)O(3) (BLFNO) samples were prepared in order to study the dielectric, magnetic magnetoelectric properties of La Nb codoped BiFeO3. Rietveld refinement x-ray diffraction patterns has been performed using R3c space group. Magnetic hysteresis loops revealed that codoping can effectively increase spontaneous magnetization due change bond angle Fe-O-Fe as a result distortion created by Nb5+ doping. field-induced relative...
Spinel–perovskite magnetoelectric (ME) nanocomposites x MgFe 2 O 4 –(1− ) BiFeO 3 , = 0.1, 0.2, 0.3, and 0.4 were synthesized by sol‐gel method characterized differential thermal analysis, X‐ray diffraction dielectric magnetic measurements. The samples calcined at various temperatures then the effect of annealing temperature on structural properties was studied. From transmission electron microscopy, average crystal size found to be 30–50 nm. behavior is dependent magnesium ferrite content....
Holmium-doped Bi1−xHoxFeO3 (x = 0, 0.025, 0.05, 0.075 and 0.10) perovskite ceramics were synthesized by a rapid liquid phase quenching process. The structural analysis performed using x-ray diffraction suggested formation with distorted rhombohedral structure in all the ceramic samples. Rietveld of patterns Raman spectroscopy also confirmed R3c symmetry. Optical studies showed characteristic bending vibrations O − Fe O, stretching visible range PL emissions modified BiFeO3 ceramics....
Samarium (Sm) doped modified bismuth ferrite samples Bi1-xSmxFeO3 (x = 0, 0.02, 0.05, 0.08, 0.1) were prepared by sol-gel technique. A detailed study on the electrical and magnetic properties of was analyzed. X-ray diffraction patterns confirm formation pure phase rhombohedral structure ferrite. The dielectric constant (ε) loss tangent (tan δ) show large frequency dispersion at low frequency. AC conductivity enhanced with Sm substitution Bi sites. enhancement in ferroelectric delineated...
(1−x)BaTiO3–xPZT(65/35) ceramics were prepared by high temperature solid state reaction technique. Structural properties of the compounds examined using an X-ray diffraction (XRD) technique to confirm formation phase at room temperature. Detailed studies dielectric (1−x) BaTiO3–xPZT(65/35) for all compositions in range 30-200 o C reveal that compound have transition well above While pure BaTiO3 exhibited a sharp transformation expected normal ferroelectrics, behavior solutions became more...
A series of Yttrium (Y) and Cobalt (Co) co-doped bismuth ferrite (BFO) ceramics (Bi1-xYxFe1-yCoyO3) were fabricated by sol-gel method. The precursors used are [Bi(NO3)3.5H2O], [Fe(NO3)3.9H2O], [Y(NO3)3.6H2O] [Co(NO3)2.6H2O]. X-ray diffraction (XRD) pattern confirms the formation pure phase after annealing at 600 ° C for 2 hrs. chemical bonding between Fe-O Bi-O identified Fourier Transform Infrared Spectroscopy (FTIR) analysis. electric polarization, magnetic properties dielectric doped...
Pure and rare earth element doped BiFeO3 (Bi0.95R0.05FeO3 with R=Y, Gd, Sm ) nanoparticles were prepared by a modified sol-gel auto combustion method. The effect of doping elements on structural, dielectric magnetic properties has been investigated. X-ray diffraction confirms the formation pure phase rhombohedral structure BiFeO3. constant Gd was found to be higher than other samples. Y shows magnetization compared All samples show frequency dispersion at low frequency.