A5085861557- Shape Memory Alloy Transformations
- Magnetic and transport properties of perovskites and related materials
- Heusler alloys: electronic and magnetic properties
- Advanced Thermoelectric Materials and Devices
- 2D Materials and Applications
- Rare-earth and actinide compounds
- Perovskite Materials and Applications
- Thermal Expansion and Ionic Conductivity
- Advanced Thermodynamics and Statistical Mechanics
- Multiferroics and related materials
- Nanomaterials for catalytic reactions
- Advanced Condensed Matter Physics
- Thermal Radiation and Cooling Technologies
- Magnetic Properties and Applications
- High Entropy Alloys Studies
- Thermal properties of materials
- Hybrid Renewable Energy Systems
- Catalytic Processes in Materials Science
- Dyeing and Modifying Textile Fibers
- Fecal contamination and water quality
- Electrochemical Analysis and Applications
- Innovative Energy Harvesting Technologies
- Electromagnetic wave absorption materials
- Microplastics and Plastic Pollution
- Aerosol Filtration and Electrostatic Precipitation
Pennsylvania State University
2023-2025
Indian Institute of Technology Kharagpur
2022-2023
Dr. B. R. Ambedkar National Institute of Technology Jalandhar
2023
Indian Association for the Cultivation of Science
2022-2023
S.N. Bose National Centre for Basic Sciences
2017-2022
Material Sciences (United States)
2022
University of Calcutta
2021
Abstract Highly effective electromagnetic (EM) wave absorber materials with strong reflection loss (RL) and a wide absorption bandwidth (EBW) in gigahertz (GHz) frequencies are crucial for advanced wireless applications portable electronics. Traditional microwave absorbers lack magnetic struggle impedance matching, while ferrites stable, exhibit excellent dielectric losses, offer better matching. However, achieving the desired EBW remains challenge, necessitating further composition design....
Thermoelectric (TE) materials have made rapid advancement in the past decade, paving pathway toward design of solid-state waste heat recovery systems. The next requirement process is realization full-scale multistage TE devices medium to high temperature range for enhanced power generation. Here, we report and manufacturing skutterudite (SKD)/half-Heusler (hH) cascaded with 49-couple legs each stage. automated pick-and-place tool employed module fabrication providing overall efficiency...
Thermal energy harvesting for high-speed moving objects is particularly promising in providing an efficient and sustainable source to enhance operational capabilities endurance. Thermoelectric (TE) technology, by exploiting temperature gradients between a heat ambient temperature, can provide continuous power supply such systems, reducing the reliance on conventional batteries extending operation times. However, integrated thermoelectric generator (TEG) system design research far behind...
Miliaria results from blockage of eccrine sweat ducts with leakage into epidermis or dermis. crystallina (MC) is a distinct form presenting mostly in newborns younger than 2 weeks. Congenital (i.e., present at birth) MC extremely rare. Very few cases have been reported till date. We report on such case where mother apparently did not any complication during pregnancy the time childbirth. This very benign condition, but it closely mimics some serious skin infections and vesiculo-bullous...
Recently, all-$d$-metal Ni(Co)-Mn-Ti Heusler systems have become the research hotspot due to their magnetoresponsive properties associated with a tunable first-order magnetostructural transformation (MST) and excellent mechanical stability for potential applications. However, presence of large thermal hysteresis acts as an obstacle cyclic operation this novel material. In present paper, we investigate reversible magnetocaloric effect (MCE) magnetoresistance (MR) in...
The demand for high‐performance materials in thermoelectric (TE) technology has driven continuous efforts to enhance the performance of commercialized Bi 2 Te 3 ‐based materials. Here, we report success achieving significant improvements n‐type 2.8 Se 0.2 S 0.01 through implementation a hot extrusion manufacturing process. This tailored process yielded desired microstructure characterized by grain growth and preferred orientations. resulting enlarged grain‐based exhibits reduced dislocations...
Magnetic and structural transitions are observed to coincide at around room temperature in transition-metal-based $(\mathrm{Mn}\mathrm{Ni}\mathrm{Si}{)}_{1\text{\ensuremath{-}}x}(\mathrm{Fe}\mathrm{Co}\mathrm{Ga}{)}_{x}$ (x = 0.15 0.16) alloys, which leads a coupled first-order magnetostructural transition (MST) from paramagnetic hexagonal ferromagnetic orthorhombic structure, and, as result, giant magnetocaloric effect is these alloys. With subsequent doping for x 0.17, the MST decouples...
We report a giant exchange bias (EB) field of about 3.68 kOe during cooled process in all-d-metal Ni40(FeCo)4Mn36Ti20Heusler alloy. The study magnetic memory effect and isothermal relaxation processes suggest that the EB arises due to possible coexistence antiferromagnetic (AFM) ferromagnetic (FM) phase interaction studied system at temperatures below 35 K. Furthermore, temperature cooling dependence are analyzed which related change unidirectional anisotropy FM/AFM interface....
Solar cells based on organic-inorganic lead halide perovskites are popular in the photovoltaic community due to their high efficiency, low cost, and solution processability. Understanding fundamentals of metal perovskite its interfaces is extremely important for achieving high-quality materials developing efficient devices using these with necessary properties. Various methodologies have been used evaluate excellent optoelectronic properties, stability PSCs. In this article, we reviewed case...
A hydrophobic surface with an antibacterial property has numerous uses, including self-cleaning, anti-sticking, anti-contamination, sports apparel, and wound healing/implant materials. The durability of the coating in aquas media (pH 7.4) is a vital requirement for use technical textile sectors, particularly medical applications. In this study, we used silica sol, chitosan hexadecyltrimethoxysilane (HDTMS) to create exceptionally surfaces properties on cotton fabrics. First, fabric was...
Abstract Magnetic topological semimetals (TSMs) with broken time-reversal symmetry are very rare and have drawn significant attention in condensed matter physics due to their numerous intriguing properties. Among these various magnetic TSMs, Co 2 -based full Heusler compounds of current interest, since a few materials exhibit Weyl nodal fermions band structure. In this work, we report comprehensive study anomalous Hall effect (AHE) the ferromagnetic compound VAl. Recent studies indicate that...
MnNiSi-based compounds exhibit giant isothermal magnetic entropy change (ΔSM) across their induced first-order coupled magnetostructural transition (MST) in the vicinity of room temperature, though most cases, use Maxwell relation from a very frequently used but incorrect measurement protocol provides nonphysical spike to calculated ΔSM. Herein, realize accurate protocol, we explore magnetocaloric properties (FeCoGa)x doped (MnNiSi)1−x compound with x = 0.165 rigorously. Several methods,...
The coincidence of magnetic and structural transitions near room temperature is observed in (MnNiSi)1−x(FeNiGa)x (x = 0.16 0.17) systems, which leads to a coupled magnetostructural transition (MST) from high-temperature paramagnetic Ni2In-type hexagonal phase low-temperature ferromagnetic TiNiSi-type orthorhombic associated with substantial change magnetization large unit cell volume, thus, across MST, giant magnetocaloric effect obtained these systems. alloys x 0.17 are show isothermal...
Abstract Manipulation of long‐range order in 2D van der Waals (vdW) magnetic materials (e.g., CrI 3 , CrSiTe ,etc.), exfoliated few‐atomic layer, can be achieved via application electric field, mechanical‐constraint, interface engineering, or even by chemical substitution/doping. Usually, active surface oxidation due to the exposure ambient condition and hydrolysis presence water/moisture causes degradation nanosheets that, turn, affects nanoelectronic /spintronic device performance....
Herein, the anisotropic magnetic properties of 2D van der Waals (vdW) insulator, chromium oxychloride (CrOCl), are presented. Temperature‐dependent bulk magnetization reveals a paramagnetic to antiferromagnetic phase transition at ≈14 K (Néel temperature, T N ) while cooling. From field‐dependent study ( M–H low first‐order field‐induced (at or above 40 kOe) metamagnetic from ferrimagnetic state has been observed. Noticeably, switching easy plane ab ‐plane) c ‐axis can be identified 29 kOe....
Energy harvesting using various locally available energy sources such as vibration energy, heat, sound, or magnetic field have become attractive topics for supplying power to modular electronic devices making them run independently in extreme environments. In this paper, we will be discussing the perspectives on thermoelectric (TE) and piezoelectric materials devices, then concept of multi-source harvester integration into a reliable independent source. TE having low thermal conductivity...