A5102762633- Multiferroics and related materials
- Magnetic and transport properties of perovskites and related materials
- Ferroelectric and Piezoelectric Materials
- Advanced Sensor and Energy Harvesting Materials
- Innovative Energy Harvesting Technologies
- Magnetic Properties and Synthesis of Ferrites
- Phase-change materials and chalcogenides
- Advanced Condensed Matter Physics
- Transition Metal Oxide Nanomaterials
Indian Institute of Technology Madras
2020-2023
Environment-friendly lead-free pyroelectrics are indispensable for pyroelectric generators to extract energy from low-gradient waste heat power portable electronic devices. The response near room temperature is essential high performance harvesters, which unfortunately limited ferroelectrics. Herein, BaTiO3-based ferroelectric–ZnO semiconductor composites were reported exhibit superior harvesting characteristics temperature. role of ZnO on the improved ferroelectric elucidated through...
Room-temperature tunable bipolar magnetization switching and magnetically switchable magnetocaloric phenomena having numerous application potentials are reported in $\mathrm{GdM}{\mathrm{n}}_{1\ensuremath{-}x}\mathrm{F}{\mathrm{e}}_{x}{\mathrm{O}}_{3}$ ($x=0.55$ 0.60) polycrystalline samples. Substitution of Fe antiferromagnetic $\mathrm{GdMn}{\mathrm{O}}_{3}$ induces a first-order spin-reorientation transition $({T}_{SR})$, which along with ordering $({T}_{\mathrm{N}})$ gives rise to...
Rare-earth orthochromite is an interesting system in the view of its complex magnetic ordering due to competing interaction between different ions. Here, Fe-substituted SmCrO3samples were prepared by solid-state route investigate their intriguing properties towards exploring application potential. The studies revealed antiferromagnetic (AFM) at Nèel temperature (TN) ∼ 181 K, compensation temperatures (TCOMP) ∼137 K and 50 spin-reorientation (TSR) 64 SmCr0.8Fe0.2O3sample. Additionally,...
Abstract The enhanced electrocaloric (EC) effect in solid-state-based lead-free ferroelectric Ba 0.875 (Bi 0.5 Li ) 0.125 TiO 3 system is investigated under the light as an external stimulus. sample exhibits analogous value of maximum change entropy at Curie temperature, extracted from two different measurements process. Notably, depicts adiabatic temperature (Δ T 1.27 K and isothermal S 2.05 J/K kg along with EC coefficient 0.426 mm/kV, dark conditions. In addition, > 1 over a broad...