A5004072841- Multiferroics and related materials
- Ferroelectric and Piezoelectric Materials
- Magnetic Properties and Synthesis of Ferrites
- Dielectric properties of ceramics
- Microwave Dielectric Ceramics Synthesis
- Magnetic Properties and Applications
- Magnetic and transport properties of perovskites and related materials
- Advanced Condensed Matter Physics
- Electromagnetic wave absorption materials
National Institute of Technology Rourkela
2014-2020
Sri Sri University
2020
Raja Ramanna Centre for Advanced Technology
2018
Bhabha Atomic Research Centre
2018
UGC DAE Consortium for Scientific Research
2018
We investigated the anomalous behaviour in dielectric properties, occurring nearly at room temperature and elevated temperatures (near Neel TN) of polycrystalline samples YFeO3 (YFO) ceramics. On prepared YFO ceramics, magnetic measurements showed to be 650 K, below which compound exhibited weak ferromagnetic behaviour. X-ray photoelectron spectroscopy (XPS) shows presence Fe ions (Fe2+ Fe3+ states) also revealed formation oxygen vacancies. The frequency dependence complex constant within...
Four novel composite systems having composition "80 wt% BaFe12O19 (BaM)-20 Na0.5Bi0.5TiO3 (NBT)" were prepared by solid state reaction technique with considering the variation of microstructure for both phases. The formation desired was confirmed X-ray diffraction study. From SEM and FESEM images it found that phases are well connected each forming 0-3 type particulate composite. magneto-capacitance data observed that, system which have larger size (≈ micron range) matrix phase (BaM) smaller...
Polycrystalline (100 - x)BaFe <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">12</sub> O xmlns:xlink="http://www.w3.org/1999/xlink">19</sub> (BaM) (x)Na xmlns:xlink="http://www.w3.org/1999/xlink">0.5</sub> Bi TiO xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> (NBT) [x in wt% = 10, 20, 30, and 40] magnetoelectric composite systems have been synthesized by solid-state reaction method. The formation of the desired has verified X-ray...
Polycrystalline three novel [90 wt%Na0.5Bi0.5TiO3 (NBT)-10 wt% BaFe12O19 (BaM)] magnetoelctricmultiferroic composite systems were fabricated by considering the variation (increasing) of BaM grain size. The desired formation composites was confirmed X-ray diffraction study. FESEM and SEM study verified size 0-3 type connectivity systems. To predict room temperature multiferroicbehaviour theses we taken PE MH loop. For investigating extrinsic intrinsic magnetoelctric effect magneto impedance...
Polycrystalline M-type hexagonal Strontium hexaferrite and its modified systems by Cobalt (Co) Titanium (Ti) were successfully prepared the solid state reaction method. The single phase formation of all well grain growth micrometer range was confirmed X-ray diffraction pattern Scanning Electron Microscopic image respectively. impedance spectroscopy dielectric properties investigated in a selected frequency & temperature range. room M-H loop study for carried out Vibrate Sample Magnetometer....