A5027006540- Heusler alloys: electronic and magnetic properties
- Glass properties and applications
- Magnetic Properties and Applications
- Shape Memory Alloy Transformations
- Phase-change materials and chalcogenides
- Metallic Glasses and Amorphous Alloys
- Magnetic and transport properties of perovskites and related materials
- Magnetic Properties of Alloys
- Bone Tissue Engineering Materials
- Magnetic properties of thin films
- MXene and MAX Phase Materials
- Microstructure and mechanical properties
- ZnO doping and properties
- Intermetallics and Advanced Alloy Properties
- Conducting polymers and applications
- Luminescence Properties of Advanced Materials
- Chalcogenide Semiconductor Thin Films
- Aluminum Alloy Microstructure Properties
- Electron and X-Ray Spectroscopy Techniques
- Magnetic Properties and Synthesis of Ferrites
- Dental Implant Techniques and Outcomes
- Pigment Synthesis and Properties
- Advanced Memory and Neural Computing
- Aluminum Alloys Composites Properties
- Facial Trauma and Fracture Management
Indian Institute of Technology Guwahati
2015-2024
University of Pittsburgh
2023
University of South Africa
2016-2019
Dr. Reddy's Laboratories (United States)
2017
Université de Bordeaux
2015
Institut des Sciences Moléculaires
2015
Institute of Medical Sciences
2015
National Institute for Materials Science
2011-2012
Bhabha Atomic Research Centre
2010
Assam University
2005
The co-doping of Ca and Mn in respective Bi Fe-sites BiFeO3 lattice leads to structural transition from rhombohedral (R3c space group) orthorhombic (Pbnm crystal symmetry. tilt angle for anti-phase rotation the oxygen octahedra at room temperature is observed be ∼13.8°. It decreases with increase percentage which suggests composition-driven phase transition. remnant magnetization sample 15% becomes about 16 times that BiFeO3. may attributed suppression cycloid spin structure uncompensated...
Using a newly developed highly spin-polarized Heusler alloy, Co2Fe(Ga0.5Ge0.5) (CFGG), as ferromagnetic layers, we have fabricated current-perpendicular-to-plane pseudospin valve with large resistance change-area product (ΔRA) of 9.5 mΩ μm2 and magnetoresistance (MR) ratio (100×ΔR/R) 41.7% at 300 K. These values were further enhanced to ΔRA=26.4 MR=129.1% 10 The MR are attributed the high spin polarization CFGG alloy confirmed by point contact Andreev reflection measurements.
The existence of an orientationally disordered cubic phase solid ethanol is revealed by x-ray diffraction and Raman spectroscopic measurements. Such a phase, whose was postulated some time ago on the basis specific-heat measurements, produced quenching below 95 K plastic crystal formed upon melting subsequent annealing topologically (glassy) solid. relevance present findings for current discussions glassy dynamics analyzed in detail. \textcopyright{} 1996 American Physical Society.
Cross-linked polyvinyl alcohol (PVA) and pyrrolidone (PVP) composite nanofibrous membranes have been prepared by electrospinning. Mechanical properties of the improved significantly with PVP addition. hydrophilicity sustainable degradation membranes. Biocompatibility was assessed in vitro culture native skin cells (L929 fibroblast HaCaT keratinocytes). Tests showed sustained release antibiotic ciprofloxacin hydrochloride monohydrate Further, zone inhibition study against Staphylococcus...
Sol–gel (45 − x )SiO 2 24.5CaO24.5Na O6P O 5 Fe 3 (0 ≤ 15 wt%) glass-ceramics for bone regeneration and hyperthermia applications.
We report the observation of magnetic entropy change due to martensitic phase transformations bulk off-stoichiometric Heusler alloys with compositions Ni46Mn43Sn11, Ni44Mn43Co2Sn11, and Ni44Mn43Cu2Sn11, prepared by arc melting method. The transition parent ternary alloy (Ni46Mn43Sn11) shifts lower temperatures upon Co Cu substitution. Inverse magnetocaloric effect was observed in these near transformation temperature when subjected an applied field. Ni44Mn43Cu2Sn11 exhibited maximum positive...
In the present work, we introduce a new approach for synthesis of asymmetric particles made from electrically conducting polyaniline-alginate hydrogels by using bipolar electrochemistry. Such an intrinsic break symmetry allows soft beads to exhibit tunable motion at air/water interface when loaded with ethanol due controllable directed release solvent.
Magnetite (Fe3O4) nanoparticle (MNP)-substituted glass-ceramic (MSGC) powders with compositions of (45 - x)SiO2-24.5CaO-24.5Na2O-6P2O5-xFe3O4 (x = 5, 8, and 10 wt%) have been prepared by a sol-gel route introducing Fe3O4 nanoparticles during the synthesis. The X-ray diffraction patterns as-prepared MSGC nanopowders revealed presence combeite (Na2Ca2Si3O9), magnetite, sodium nitrate (NaNO3) crystalline phases. Heat-treatment up to 700 °C for 1 h resulted in complete dissolution NaNO3 along...