A5063696520- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Multiferroics and related materials
- Magnetic Properties and Synthesis of Ferrites
- Advanced Condensed Matter Physics
- Iron oxide chemistry and applications
- Iron-based superconductors research
- Rare-earth and actinide compounds
- ZnO doping and properties
- Copper-based nanomaterials and applications
- Magnetic and transport properties of perovskites and related materials
- Crystal Structures and Properties
- Ferroelectric and Piezoelectric Materials
- High-pressure geophysics and materials
- Physics of Superconductivity and Magnetism
- Advancements in Battery Materials
- Magnetism in coordination complexes
- Transition Metal Oxide Nanomaterials
- Molecular Sensors and Ion Detection
- Gas Sensing Nanomaterials and Sensors
- Semiconductor materials and interfaces
- Phase-change materials and chalcogenides
- Advanced Nanomaterials in Catalysis
- Magneto-Optical Properties and Applications
- Chalcogenide Semiconductor Thin Films
University of Petroleum and Energy Studies
2022-2024
Institut Néel
2020-2024
Université Grenoble Alpes
2020-2024
University of Cambridge
2020-2024
Tel Aviv University
2016-2022
Centre National de la Recherche Scientifique
2020
Indian Institute of Technology Kanpur
2009-2015
University of Delhi
2015
Delhi Technological University
2015
Banaras Hindu University
2015
Single phase BiFeO3 nanoparticles have been successfully synthesized for the first time by a novel citrate combustion method without using any solvent. Well mixed metal nitrates along with citric acid which is used as fuel combust to give after annealing. These particles are single in nature and crystallize rhombohedral distorted perovskite structure (space group-R3c) has confirmed Rietveld refinement of room temperature powder x-ray diffraction data. Nearly spherical average particle size...
We provide experimental and theoretical evidence for a pressure-induced Mott insulator-metal transition in Fe2O3 characterized by site-selective delocalization of the electrons. Density functional plus dynamical mean-field theory (DFT+DMFT) calculations, along with Mössbauer spectroscopy, x-ray diffraction, electrical transport measurements on up to 100 GPa, reveal this between 50 68 such that metallization can be described (Fe3+HSVI)2O3 [R3¯c structure]→50 GPa(Fe3+HSVIII FeVIM)O3 [P21/n...
BiFe1-xCrxO3 (x = 0.0, 0.05 and 0.1) nanoparticles are prepared by the combustion method without using any solvent. All synthesized single phase in nature, nearly spherical shape crystallize distorted perovskite structure (space group R3c) with an average crystallite size of order 40 nm. The room temperature magnetization observed BiFeO3 is larger than that bulk. Saturation coercive field increase increasing Cr-doping. Strong superexchange interaction between Fe3+ Cr3+ atoms likely to give...
Abstract Reported herein is a hitherto unknown family of diiron(III)‐μ‐hydroxo bisporphyrins in which two different spin states Fe are stabilized single molecular framework, although both cores have identical structures. Protonation the oxo‐bridged dimer ( 2 ) by using strong Brønsted acids, such as HI, HBF 4 , and HClO produce red μ‐hydroxo complexes with I 3 − ), BF ClO 5 counterions, respectively. The X‐ray structure molecule reveals that FeO bond length increases on going from μ‐oxo to...
In the present study, monodispersed CeO2 nanoparticles (NPs) of size 8.5 ± 1.0, 11.4 1.0 and 15.4 nm were synthesized using sol-gel method. Size-dependent structural, optical magnetic properties as-prepared samples investigated by X-ray diffraction (XRD), field emission scanning electron microscope (FE-SEM), high resolution transmission microscopy (HR-TEM), ultra-violet visible (UV-VIS) spectroscopy, Raman spectroscopy vibrating sample magnetometer (VSM) measurements. The value band gap is...
We report systematic investigations on structural, magnetic and optical properties of NiO nanoparticles prepared by mechanical alloying. As-milled powders exhibit face centred cubic structure, but average particle size decreases effective strain increases for the initial periods milling. Lattice volume monotonically with a reduction in size. Antiferromagnetic particles significant room temperature (RT) ferromagnetism modest moment coercivity. A maximum 0.0147 μ <sub...
The electronic ground state in many iridate materials is described by a complex wave-function which spin and orbital angular momenta are entangled due to relativistic spin-orbit coupling (SOC). Such localized carries an effective total momentum of $J_{eff}=1/2$. In with edge-sharing octahedral crystal structure, such as the honeycomb iridates Li2IrO3 Na2IrO3, these $J_{eff}=1/2$ moments expected be coupled through special bond-dependent magnetic interaction, necessary condition for...
Carbon dioxide is a primary greenhouse gas that plays vital role in shaping life on Earth. However, the continuous anthropogenic emissions of CO2 at prominent levels have caused severe damage to earth as they increase global average temperature earth, causing warming. To restrict further rise temperature, it necessary capture efficiently by various means. Technological carbon sequestration would benefit manufacturing industry minimizing and saving taxes. This review article explore methods...
Abstract An easily synthesizable indole‐derived chromofluorogenic probe InNS has been demonstrated for recognition of trivalent metal ions (i. e., Al 3+ , Ga In and Fe ). Both UV‐Vis emission spectral studies have employed to assess the cation sensing ability in semi‐aqueous medium. This exhibited a chromogenic response these ions, related change was accompanied with appearance new absorption near 376 nm. obvious color from pale yellow dark could also be noticed upon addition aforementioned...