A5059844246- Magnetic Properties and Synthesis of Ferrites
- Magnetic and transport properties of perovskites and related materials
- Multiferroics and related materials
- Advanced Condensed Matter Physics
- Electromagnetic wave absorption materials
- Magnetic Properties and Applications
- Magnetic properties of thin films
- Rare-earth and actinide compounds
- Ferroelectric and Piezoelectric Materials
- Magneto-Optical Properties and Applications
- Iron oxide chemistry and applications
- Characterization and Applications of Magnetic Nanoparticles
- ZnO doping and properties
- Copper-based nanomaterials and applications
- Nanoparticle-Based Drug Delivery
- Nanofluid Flow and Heat Transfer
- Metallic Glasses and Amorphous Alloys
- Magnetic Properties of Alloys
- Graphene research and applications
- X-ray Diffraction in Crystallography
- Microwave Dielectric Ceramics Synthesis
- Power Transformer Diagnostics and Insulation
- Crystallization and Solubility Studies
- Advancements in Battery Materials
- Theoretical and Computational Physics
National Chemical Laboratory
2013-2022
Academy of Scientific and Innovative Research
2013-2020
Savitribai Phule Pune University
2015-2018
Council of Scientific and Industrial Research
2017
Indian Institute of Chemical Technology
2012
Tokyo Institute of Technology
2005
Cochin University of Science and Technology
2001-2002
Indian Institute of Science Bangalore
1989-1993
FZI Research Center for Information Technology
1980
Anisotropic magnetic susceptibilities of single crystals the layered transition-metal thiophosphates ${\mathrm{MnPS}}_{3}$, ${\mathrm{FePS}}_{3}$, and ${\mathrm{NiPS}}_{3}$ have been measured as a function temperature. The materials order antiferromagnetically at low temperatures, N\'eel temperatures being 78, 123, 155 K, respectively. In ordered state, magnetization axis lies perpendicular to layers for ${\mathrm{MnPS}}_{3}$ while it in layer. paramagnetic regime, anisotropies these...
The static and dynamic response of cluster glass in ${\mathrm{La}}_{0.5}$${\mathrm{Sr}}_{0.5}$${\mathrm{CoO}}_{3}$ has been experimentally investigated through linear nonlinear ac susceptibility measurements the frequency range 137 Hz to 1370 Hz; field (1--10 Oe), dc (0--40 Oe). Field cooled zero magnetization data have also reported. An attempt made compare with spin glass, reentrant canted systems. interesting observation is that system, coercivity at low fields under condition does not...
Analysis of the irreversible field-cooled (FC) and zero-field-cooled (ZFC) magnetic susceptibilities one ferrimagnetic three ferromagnetic systems, measured at different applied fields, shows that irreversibility indicated by difference between FC ZFC arises from anisotropy. The two are related to each other through coercivity which is a measure susceptibility can be calculated (or vice versa) coercivity.
The synthesis of iron oxide nanoparticles the predominantly magnetite phase by reaction aqueous complexes with bacterium, Actinobacter spp., is described. This occurs at room temperature and under aerobic conditions, resulting in formation superparamagnetic magnetite.
Fine particles of cobalt ferrite were synthesized by the sol?gel method. Subsequent heat treatment at different temperatures yielded ferrites having grain sizes. X-ray diffraction studies carried out to elucidate structure all samples. Dielectric permittivity and ac conductivity samples evaluated as a function frequency, temperature size. The variation with frequency reveals that dispersion is due Maxwell?Wagner type interfacial polarization in general, noted from expected behaviour for cold...
We have studied the local electronic structure of $\mathrm{La}{\mathrm{Mn}}_{0.5}{\mathrm{Co}}_{0.5}{\mathrm{O}}_{3}$ using soft-x-ray absorption spectroscopy at $\mathrm{Co}\text{\ensuremath{-}}{L}_{3,2}$ and $\mathrm{Mn}\text{\ensuremath{-}}{L}_{3,2}$ edges. found a high-spin ${\mathrm{Co}}^{2+}\text{\ensuremath{-}}{\mathrm{Mn}}^{4+}$ valence state for samples with optimal Curie temperature. discovered that lower temperatures contain low-spin nonmagnetic ${\mathrm{Co}}^{3+}$ ions. Using...
Fine particles of lithium ferrite were synthesized by the sol-gel method.By subsequent heat treatment at different temperatures, ferrites grain sizes prepared.A structural characterization all samples was conducted x-ray diffraction technique.A size around 12 nm observed for Li 0.5 Fe 2.5 O 4 obtained through method.Magnetic properties nanoparticles with ranging from to 32 studied.Magnetization measurements showed that fine exhibit a deviation predicted magnetic behaviour.The as-prepared...
Strain sensitivity is improved without affecting the magnetostriction coefficient upon substitution of a small amount Fe by Mg in CoFe<sub>2</sub>O<sub>4</sub>.
Superparamagnetic iron oxide nanoparticles of size ~5 nm surface functionalized with ascorbic acid (vitamin C) form a stable dispersion in water hydrodynamic ~30 nm. The anti-oxidant property is retained after capping, as evidenced from the capability converting methylene blue to its reduced leuco form. NMR relaxivity studies show that ascorbic-acid-coated superparamagnetic aqueous nanofluid suitable contrast enhancement agent for MRI applications, coupled excellent biocompatibility and...
Sintered polycrystalline cobalt ferrite is a potential magnetostrictive smart material for applications as sensors and actuators. A novel concept of enhancing the strain sintered by making self-composites from nanosized bulk powders with different particle sizes same components reported. The give higher magnetostriction coefficient derivative when compared to products obtained individual powders. maximum up ~310 ppm, whereas ~370 ppm two-component system consisting two sizes. On other hand,...
Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation K. Khaja Mohaideen, P. A. Joy; High magnetostriction coupling coefficient for sintered cobalt ferrite derived from superparamagnetic nanoparticles. Appl. Phys. Lett. 13 August 2012; 101 (7): 072405. https://doi.org/10.1063/1.4745922 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends...