A5069008612- ZnO doping and properties
- Magnetic and transport properties of perovskites and related materials
- Advanced Condensed Matter Physics
- Multiferroics and related materials
- Advanced Thermoelectric Materials and Devices
- Copper-based nanomaterials and applications
- Gas Sensing Nanomaterials and Sensors
- Ga2O3 and related materials
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Transition Metal Oxide Nanomaterials
- Thermal properties of materials
- Topological Materials and Phenomena
- Phase-change materials and chalcogenides
- Magnetic Properties and Synthesis of Ferrites
- Chalcogenide Semiconductor Thin Films
- Ferroelectric and Piezoelectric Materials
- Semiconductor materials and devices
- Electronic and Structural Properties of Oxides
- Crystal Structures and Properties
- Heusler alloys: electronic and magnetic properties
- Physics of Superconductivity and Magnetism
- Quantum Dots Synthesis And Properties
- Copper Interconnects and Reliability
- Thermal Radiation and Cooling Technologies
University of Calcutta
2016-2025
Raiganj University
2015-2021
University of Reading
2021
Royal Holloway University of London
2021
Rutherford Appleton Laboratory
2021
Moscow Institute of Physics and Technology
2021
UGC DAE Consortium for Scientific Research
2021
Lomonosov Moscow State University
2021
Indira Gandhi Centre for Atomic Research
2015
Bhabha Atomic Research Centre
2012
Structural and thermoelectric properties of metallic semiconducting Sb2Te3 are reported. X-Ray diffraction Raman spectroscopy studies reveal that sample has higher defect density. Nature origin possible defects highlighted. Semiconducting hosts larger numbers defects, which act as scattering center give rise to the increased value resistivity, thermopower, power factor. Thermopower data indicate p-type nature synthesized samples. It is evidenced surface states often mixed with bulk state,...
In this combined experimental and theoretical paper, we study the properties of ${\mathrm{Cu}}_{3}\mathrm{Sm}{({\mathrm{SeO}}_{3})}_{2}{\mathrm{O}}_{2}\mathrm{Cl}$ belonging to francisite family compounds, which are novel frustrated layered compounds. is synthesized through a solid state reaction. Characterizations measurements magnetization, specific heat, X-band electron spin resonance, rare-earth optical spectroscopy, establish that compound orders antiferromagnetically at...
In this literature, we have investigated the magnetic properties and Schottky device-based charge transport of hydrothermally derived Mn <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">0.04</sub> Cu xmlns:xlink="http://www.w3.org/1999/xlink">0.05</sub> Zn xmlns:xlink="http://www.w3.org/1999/xlink">0.91</sub> O nanorod. The doping 3-D transitional metals, Cu, within ZnO makes it potentially applicable in spin-based electronics, whereas its...
XANES and EXAFS studies have been carried out on Fe doped ZnO thin films having different doping concentration ranging from 1% to 10% the observed ferromagnetism in samples is explained light of observations.
In this paper, a detailed comprehensive magnetic study on the origin of Griffiths phase (GP) in nanocrystalline ${\mathrm{La}}_{0.4}{({\mathrm{Ca}}_{0.5}{\mathrm{Sr}}_{0.5})}_{0.6}{\mathrm{MnO}}_{3}$ compound has been presented. The system exhibits ferromagnetic (FM)-like transition around ${T}_{\mathrm{C}}\phantom{\rule{4pt}{0ex}}\ensuremath{\sim}$ 274 K. Interestingly, above ${T}_{\mathrm{C}}$, state is not pure paramagnetic, but short-range FM interaction or GP observed and persists up to...
Abstract Bi 2 Te 3 , an archetypical tetradymite, is recognised as a thermoelectric (TE) material of potential application around room temperature. However, large energy gap (Δ E c ) between the light and heavy conduction bands results in inferior TE performance pristine bulk n -type . Herein, we propose enhancement through purposefully manipulating defect profile band convergence mechanism. Two samples, S1 S2, are prepared by melting method under different synthesis condition. The...
The present work aims to study the effect of ion irradiation on structural and electrical properties their correlation with defects in Zn(1 - x)Mn(x)O-type system. x)Mn(x)O (x = 0.02, 0.04) samples have been synthesized by solid-state reaction method irradiated 50 MeV Li(3+) ions. concomitant changes probed x-ray diffraction (XRD), temperature-dependent resistivity positron annihilation lifetime (PAL) spectroscopy. XRD result shows a single-phase wurtzite structure for Zn(0.98)Mn(0.02)O,...
Single-phase nanocrystalline strontium hexaferrite (SrFe12O19) powders have been synthesized by a sol–gel method and their structural, magnetic hyperfine properties are discussed. The optimum annealing temperature of the as-prepared gel for formation single-phase SrFe12O19 structure has found to be 800 °C. X-ray diffraction Fourier transform infrared studies confirmed phase. cation distribution at crystallographic inequivalent sites examined 57Fe Mössbauer spectroscopy identical that...
Abstract Supercapacitors are rapidly gaining attention as next‐generation energy storage devices due to their superior power and densities. This study pioneers the investigation of Mn/Zn co‐doping in α‐Cu₂V₂O₇ (CVO) enhance its performance a supercapacitor electrode material. Structural local properties co‐doped CVO have been investigated through X‐ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Transmission (TEM), Photoelectron Spectroscopy (XPS), Absorption (XAS), revealing...