A5034997846- Magnetic and transport properties of perovskites and related materials
- ZnO doping and properties
- Advanced Condensed Matter Physics
- Rare-earth and actinide compounds
- Physics of Superconductivity and Magnetism
- Chalcogenide Semiconductor Thin Films
- Copper-based nanomaterials and applications
- Gas Sensing Nanomaterials and Sensors
- Quantum Dots Synthesis And Properties
- Multiferroics and related materials
- Ion-surface interactions and analysis
- Advanced Thermoelectric Materials and Devices
- Iron-based superconductors research
- Electronic and Structural Properties of Oxides
- Semiconductor materials and interfaces
- Transition Metal Oxide Nanomaterials
- Integrated Circuits and Semiconductor Failure Analysis
- Magnetic properties of thin films
- Diamond and Carbon-based Materials Research
- Magnetic Properties of Alloys
- Semiconductor materials and devices
- Metal and Thin Film Mechanics
- Topological Materials and Phenomena
- Ferroelectric and Piezoelectric Materials
- Surface Modification and Superhydrophobicity
Bharath University
2023-2025
Vinayaka Missions University
2025
Universiti Tunku Abdul Rahman
2024
UGC DAE Consortium for Scientific Research
2015-2024
Medi-Caps University
2021-2024
Madhya Pradesh Bhoj Open University
2023
Barkatullah University
2011-2023
Indian Association for the Cultivation of Science
2020-2023
Indira Gandhi Centre for Atomic Research
2003-2022
Vellore Institute of Technology University
2021
We have systematically investigated the magnetic properties and magnetocaloric effect (MCE) in $R$MnO${}_{3}$ ($R=\text{Dy}$, Tb, Ho, Yb) single crystals. Above a critical value of applied field (${H}_{c}$), undergo first-order antiferromagnetic (AFM) to ferromagnetic (FM) transition below ordering temperature (${T}_{N}^{R}$) ${R}^{3+}$ moment second-order FM paramagnetic (PM) above ${T}_{N}^{R}$. Both $H$ $T$ dependence $M$ shows that system is highly anisotropic as well PM states and,...
A nickel oxide (NiO) thin film with better reversibility, high optical modulation, and enhanced coloration efficiency fast switching time was prepared using radio frequency (rf) magnetron sputtering technique.
High-densely packed and uniformly distributed molybdenum oxide nanorods have been grown onto glass substrates by RF magnetron sputtering subsequent annealing in an oxygen atmosphere. A two-step growth mechanism (sputtering redeposition enhanced rearrangement during annealing) for the formation of MoO3 has proposed. The morphological, structural, optical electrical properties investigated systematically using atomic force microscopy, scanning electron x-ray diffraction, micro-Raman,...
This paper reports an in-depth study on nanocrystalline Gd-doped ZnO thin films synthesized using versatile pulsed spray pyrolysis method and exhibit room temperature ferromagnetism. The detailed structural microstructural studies confirm that the doped Gd ions occupy Zn sites peak shift can be elucidated by charge neutrality. Optical investigation shows doping in lattice leads to a decrease near band edge position due introduction of new unoccupied states 4f electrons. electronic structure...
Background: In the present work, Ag/ZnO nanorods were synthesized in order to investigate bacterial sensitivity against Gram positive and negative bacteria, comparatively by using well diffusion method. Materials methods:Nanoparticles Sol-Gel method, AgNO 3 , Zn(CH CO 2 ) 2, NaOH PVP as capping agent.All materials characterized XRD, HRTEM, PL, FTIR, EDX, μ-Raman. Results:The Ag nanoparticles found attached crystalline ZnO nanorod.Ag/ZnO be more effective towards positive, thus contribute...
Schematic showing the effect of dielectric environment on zeta potential and UV-visible absorbance monodispersed Ni nanoparticles.
Zinc oxide (ZnO) thin films were electrodeposited from an aqueous zinc acetate solution onto fluorine-doped (FTO) coated conducting glass substrates. The effect of organic surfactants like polyvinyl pyrrolidone (PVP), sodium dodecyl sulfate (SDS), polyethylene glycol (PEG), ethylene (EG) and alcohol (PVA) on their structural, morphological, optical photoelectrochemical properties was studied. x-ray diffraction patterns revealed the formation phase-pure ZnO films. deposited using exhibit...
We have investigated the magnetic and magnetocaloric properties of HoMnO3 single crystal. displays a series complicated phase transitions due to long range ordering Mn3+ Ho3+ moments. Field variation in magnetization generates metamagnetic transition produces an entropy change 13.1 J/kg K at 7 T vicinity antiferromagnetic temperature Ho3+. The values adiabatic (∼6.5 K) relative cooling power (∼320 J/kg) for field are also appreciable consider as refrigerant low temperature.
Pure and titania modified WO3 films are prepared using pulsed laser ablation technique in an oxygen ambient of 0.12mbar at a substrate temperature 873K. Titania incorporation effects on the microstructure, optical, electrical properties tungsten oxide systematically investigated techniques such as x-ray diffraction, atomic force microscopy, scanning electron energy dispersive spectroscopy, micro-Raman UV-visible absorption spectroscopy measurements. The resistivity measurements pure done...