A5062665120- Magnetic and transport properties of perovskites and related materials
- Advanced Condensed Matter Physics
- Shape Memory Alloy Transformations
- Rare-earth and actinide compounds
- ZnO doping and properties
- Gas Sensing Nanomaterials and Sensors
- Ga2O3 and related materials
- Advanced Sensor and Energy Harvesting Materials
- Magnetic Properties of Alloys
- Wireless Power Transfer Systems
- Acoustic Wave Resonator Technologies
- Solid-state spectroscopy and crystallography
- Polymer Nanocomposite Synthesis and Irradiation
- Boron and Carbon Nanomaterials Research
- Analytical Chemistry and Sensors
Maulana Azad National Institute of Technology
2022-2024
Barkatullah University
2016-2022
Solid State Physics Laboratory
2016-2022
Polycrystalline samples of La0.67Sr0.33Mn1-xCrxO3 (with x=0, 0.05 and 0.1) La0.67Sr0.33Mn1-xRuxO3 x = were synthesized using the conventional solid state reaction route found single phase in nature. Electrical resistivity measurements as a function temperature range 5 K-400 K magnetic field up to Tesla performed d.c. four-probe method. Magnetization data acquired 10 with an applied 500 Oe. When Mn is partially substituted by Cr Ru system displays dramatic changes electrical transport...
We report the electrical-transport, magneto-transport, and magnetic properties of hole doped La 0.7 Ca 0.3 MnO 3 (LCMO) 0.24 Sr 0.06 (LCSMO) single crystals, prepared using floating zone technique. The resistivity data shows metal to insulator transition (T MI ) occurs at 211 K 290 for LCMO LCSMO crystals respectively. electrical transport mechanisms these are investigated by different theoretical models, temperatures below above T . magnetization measurements show that exhibit ferromagnetic...
Enhancement in electrical properties as well temperature and field coefficient of resistance Nd0.67Sr0.33Mn1-xRuxO3 (0 ≤ x 0.10) manganites, prepared by solid state reaction route are studied. The substitution at Mn site Ru invokes a lower value TP also an increment overall MR. values obtained for TCR FCR compounds (0.05 higher compared to its parent compound Nd0.67Sr0.33MnO3. For memory devices bolometer IR detectors with application point view, these samples show the maximum...
The effect of Ru substitution on temperature coefficient resistance (TCR) and electrical transport properties Nd 0.67 Sr 0.33 Mn 1-x x O 3 (with = 0, 0.05 0.1) manganites prepared by solid state reaction route are studied. at sites leads to reduction in T P increase the overall MR. mechanisms these compounds investigated using different theoretical models, for temperatures below above . maximum value TCR (x= found be higher compared pristine compound. For memory device bolometer IR detectors...
We have studied the structural and conduction mechanism of Nd0.67Sr0.33Mn0.90Co0.10O3 manganite prepared through conventional solid state reaction route. The synthesized sample is single phase in nature crystallizes orthorhombic perovskite structure with Pbnm space group which confirmed study X-ray diffraction data Rietvield refinement. resistivity versus temperature measurement for was performed range 0-300K at 0T field. analyzed explained by different theoretical models, temperatures below...
We have analyzed the magnetic interactions in Mn-site doped Nd0.67Sr0.33MnO3 system with Ru and Ni doping. The polycrystalline samples are prepared through conventional solid-state reaction route. room temperature XRD patterns recorded using Rietveld refinement technique to confirm single phase formation of samples. magnetization versus graphs reveal Curie (TC) for all paramagnetic region is fitted Curie-Weiss model significant parameters calculated. Magnetization applied field plotted at 5K...
The exposure of ultraviolet radiation is increasing day by and the need shielding from this harmful an emerging demand. major problem with mostly used UV absorbers photodegradation that they degrade under exposure. In order to solve above problem, conventional such as titanium dioxide zinc oxide are studied doping a natural product, flavonoid. work, nano-sized particles successfully synthesised using sol-gel process their composites at five TiO2:ZnO ratios (40:60, 33:66, 30:70, 20:80, 10:90)...
We have studied the structural and electrical transport properties of Nd0.67Sr0.33Mn0.85Co0.15O3 manganite prepared through conventional solid state reaction technique. The investigation X-ray diffraction data rietvield refinement show that synthesized sample is single phase in nature crystallizes orthorhombic perovskite structure with Pbnm space group. resistivity versus temperature measurement for was performed range 0-300K at 0T field. mechanism analyzed by different theoretical models,...