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10 articles for “Spin density”
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High Performance Electrochemical Double Layer Capacitor (EDLC) Electrodes from Biomass Derived Carbon Materials †
Abstract: Insecurity and scarcity of resources lead to war and conflict as seen in Ukraine and Gaza. To prevent the dangerous effects of resource crises, especially, energy, it is imperative to invent energy sources at a war footing.The present review article is a serious attempt in that path. Super capacitors, especially, the electrochemical double layer capacitors (EDLCs) are potential energy storage devices that could be a substitute to fossil fuels. Yet, …
Published in International Journal of Energetic Materials · Vol. 10, Issue 9, 2024 · pp. 1–7 Read article
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The Study of Magnetic Properties and Applications of II–VI Diluted Magnetic Semiconductor, Zn1–xMnxO Nanoparticles
Abstract: Ferromagnetism in II-VI diluted magnetic semiconductor, Zn1-xMnxO is studied. The magnetic behavior of this Diluted Magnetic Semiconductor (DMS) is determined by using the Heisenberg and the Green’s formalism. Heisenberg’s Model describes the Hamiltonian of the system in terms of spin density and excitons. In the same way, Green’s theorem is used for calculating magnetic quantities. These theorems are employed to estimate the origin of ferromagnetism in Zn1-xMnxO nanostructures. For spin- …
Published in International Journal of Applied Nanotechnology · Vol. 10, Issue 2, 2024 · pp. 47–55 Read article
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Ferromagnetism in II-VI Diluted Magnetic Semiconductor, Zn0.96Mn0.04O Nanostructures by Green’s Theorem
Abstract: Ferromagnetism in II-VI diluted magnetic semiconductor, Zn0.96Mn0.04O is studied. Using the Heisenberg principle, the spin exchange between the neighboring spin is discussed. Heisenberg’s model describes the Hamiltonian of the system in terms of spin density and excitons. Mathematically, magnetic parameters such as magnetizations and magnetic susceptibility are determined by Green’s function. Ferromagnetism is expected from sp-d exchange interactions (RKKY), point defects such as oxygen vacancies, and Zn interstitial and quantum …
Published in International Journal of Metallurgy and Alloys · Vol. 8, Issue 2, 2022 · pp. 28–36 Read article
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Magnetic Priority Encoder Based on Spin Devices
Abstract: Energy dissipation has already become an important consideration in the design of digital integrated circuits. Because current-induced domain-wall (DW) motion is a common switching mechanism, high-density, low-power, and high-speed circuits are possible. Because spin computing is one of the most common sources of energy dissipation, employing spin logic to design digital circuits is an effective way to reduce the circuit's energy dissipation. As a result, a new spin-based priority encoder …
Published in International Journal of Applied Nanotechnology · Vol. 8, Issue 1, 2022 · pp. 16–22 Read article
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Structure and dynamics of carbon dangling bonds in activated carbon materials from biomass†
Abstract: Activated carbon materials are inevitable for energy-related applications. Production of such materials from biomass is sustainable. Microporous activated carbon materials with high specific surface area and pore sizes of less than 2 nm find life-saving applications apart from their utility in environmental remediation. The free electron density of these materials is tunable and is a measure of electrical conductivity that is useful for the development of green and renewable energy …
Published in International Journal of Green Chemistry · Vol. 11, Issue 1, 2025 · pp. 18–27 Read article
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Structure and dynamics of carbon dangling bonds in activated carbon materials from biomass
Abstract: Active carbon materials are inevitable for energy-related applications. Production of such materials from biomass is sustainable. Microporous activated carbon materials with high specific surface area and pore sizes of less than 2 nm find life-saving applications apart from their utility in environmental remediation. The free electron density of these materials is tunable and is a measure of the electrical conductivity useful for the development of green and renewable energy sources. …
Published in International Journal of Green Chemistry · Vol. 11, Issue 1, 2025 · pp. 18–27 Read article
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Spin Devices Based Area Efficient 5-Bit High Speed ADC
Abstract: This paper uses current induced domain wall motion in a magnetic stripe and pre-charge sense amplifiers (PCSA) to design a high-speed comparator of a magnetic flash ADC. Current-induced domain-wall (DW) motion is a prominent switching mechanism promising, low power high-density and high-speed circuits. Domain-wall motion in a magnetic stripe basedmagnetic flash ADC (Analog to Digital Converter) is area efficient (4.84μm2 ) and faster compared to other ADCs. Our proposed 5-bit …
Published in International Journal of Applied Nanotechnology · Vol. 7, Issue 2, 2021 · pp. 18–27 Read article
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Diluted Magnetic Semiconductor Nanoparticles: AI Enabled Ferromagnetic Resonance Imaging and Immunotherapy
Abstract: Dilute magnetic semiconductors are attractive areas of specialty in semiconductor technology, material engineering, and condensed matter system. The model employed to manipulate the Hamiltonian of the system is the Heisenberg Model. By considering a cloud of electron gas and employing equation of state, the fractions of demagnetization factors were determined. Besides, the thermodynamic relation between magnetization and temperature is determined by analyzing the Helmholtz free energy. In this research, some …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 11, Issue 1, 2025 · pp. 20–31 Read article
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Generation of Electricity with the Help of Speed Brakes
Abstract: Electricity is produced by replacing the conventional speed breakers with some simple mechanism. As vehicles pass over the speed breakers, they spin the rollers which are connected to a generator which in turn generate electricity. This method is an effectual way to produce electricity as the numbers of vehicles on the road are ever increasing. Also, the price of fabrication of the model is less. It can be effectively placed …
Published in International Journal of Mechanics and Design · Vol. 3, Issue 2, 2017 · pp. 1–6 Read article
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Magnetorheological Fluids as A Smart Material; A Prospect for Medical and Technological Application
Abstract: The effect of magnetic field on honey and blood, yolk and lave lake is investigated. The study reveals that the magnetic field guided bee honey and blood exhibits the magnetorheological fluid characteristics. The magneto resistive contribution is treated in terms of drug force in order to determine the coefficient of viscosity. The research presents that the viscosity of studied fluids will increase with the application of magnetic field. The variables …
Published in International Journal of Composite and Constituent Materials · Vol. 7, Issue 2, 2021 · pp. 17–30 Read article