Magnetic property

The magnetic properties of core/shell nanoparticles (NPs) depend on the various parameters, including the magnetic interactions, but these effects have not been well studied. Here, we systematically investigated the structure and magnetic properties of Fe3O4@CoFe2O4 core/shell NPs. X-ray diffraction (XRD), scanning electron microscopy (SEM), and scanning transmission electron microscopy (STEM) confirmed the formation of Fe3O4@CoFe2O4 core/shell NPs.

6p visergeyne 18-06-2024 0 0   Download

In this work, SrFe12O19 samples were synthesized by hydrothermal method. We systematically studied the influence of an alkaline environment (NaOH) with the molar ratio (R) of 2 , 3 and 4 on the structure, magnetic properties of SrFe12O19 particles prepared by hydrothermal method. The relation between morphology, magnetic properties and microwave absorption properties of materials have been investigated.

8p viambani 18-06-2024 2 1   Download

In this work, we proposed a simple model for control of subluminal and superluminal light propagation via an external magnetic field in a lambda configuration degenerate two-level atomic medium. We show that the absorption-dispersion properties and group index under the influence of the strength of coupling laser and external magnetic fields are controlled.

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Ebook Optical properties of semiconductors presents the following content: Chapter 1 introduction, chapter 2 introduction to semiconductors, chapter 3 lightmatter interaction, chapter 4 optical properties of semiconductors, chapter 5 bulk semiconductors: bandstructure and fundamental gap, chapter 6 quantum wells and nanostructures, chapter 7 electric and magnetic fields, chapter 8 second-order processes and quasi-particles, chapter 9 quantum dots.

115p zizaybay1103 29-05-2024 2 2   Download

A magnetic molecularly imprinted electrochemical sensor was developed for selective determination of sufentanil (SUF) based on carbon paste electrode (CPE) modified with methacrylic acid-ethylene glycol dimethacrylate-coated Fe3O4 nanoparticles (Fe3O4@MAA-EGDMA NPs). The structural properties, chemical structure, and electrochemical behaviors of the imprinted sensor were characterized by X-ray diffraction analysis (XRD), Fourier transform infrared spectroscopy (FT-IR), and square wave voltammetry (SWV), respectively.

14p dianmotminh02 03-05-2024 4 1   Download

Harvesting microalgae by centrifugation and filtration is very costly, affecting technical and economical feasibility of downstream processing of algal biomas to bioproducts. Flocculation is a potential technique for recovery of algae biomass. Particularly, flocculation using magnetic nanoparticles offers high separation efficiency due to their high surface area and magnetic properties. I

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In this study, we synthesized magnetic activated carbon (MAC) derived from Litsea glutinosa seeds, which was applied to eliminate methylene blue and nickel ions in the aeration tank of the biological treatment system. Structural characteristics and adsorption properties of MAC were studied. The obtained results revealed that the removal efficiency of these pollutants significantly improved as a combination of MAC and activated sludge, especially in the case of nickel ions removal.

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Part 1 book "Electromagnetic, mechanical and transport properties of composite materials" includes content: Applications of composite materials; electrical conductivity of composites; dielectric properties of composites; magnetic properties of composites; maxwell equations and the generalized conductivity principle; complex electromagnetic properties of composites; mechanical properties of dilute particulate filled composites; mechanical properties of concentrated pore solid composites; effective young’s modulus of concentrated composites,... and other contents

227p dianmotminh00 22-04-2024 6 3   Download

Part 2 book "Problems in solid state physics with solutions" includes content: Electrons in a weak periodic potential, methods for band structure computations, dynamics of bloch electrons in electric fields, fundamentals of semiconductors, density functional theory, pseudopotentials, projector augmented plane wave method, determination of electronic band structures, crystal defects, electron phonon interaction, transport properties of solids, magnetic properties of solids, optical properties of solids, superconductivity.

196p muasambanhan10 06-04-2024 1 0   Download

Part 1 book "Quantum physics" by author Robert Eisberg includes content: Thermal radiation and Planck's postulate; photons — particlelike properties of radiation; de Broglie's postulate — wavelike properties of particles; Bohr's model of the atom; Schrödinger's theory of quantum mechanics; solutions of time independent Schrödinger equations; one electron atoms; magnetic dipole moments, spin, and transition rates; multielectron atoms — ground states and x-ray excitations.

364p muasambanhan10 06-04-2024 1 0   Download

Part 2 book "Quantum physics" by author Robert Eisberg includes content: Multielectron atoms — optical excitations, quantum statistics; molecules; solids — conductors and semiconductors; solids — superconductors and magnetic properties; nuclear models; nuclear decay and nuclear reactions; introduction to elementary particles; more elementary particles.

502p muasambanhan10 06-04-2024 0 0   Download

Ebook "Excitation energies and properties of open-shell singlet molecules: Applications to a new class of molecules for nonlinear optics and singlet fission" investigates the diradical character, which is one of the ground-state chemical indices for "bond weakness" or "electron correlation" and which allows researchers to explore the origins of the electron-correlation-driven physico-chemical phenomena concerned with electronic, optical and magnetic properties as well as to control them in the broad fields of physics and chemistry.

129p tudohanhtau1006 29-03-2024 5 1   Download

Ebook "Molecular nanomagnets and related phenomena" consists of nine chapters: the first five chapters mainly focus on the different molecular nanomagnets, their synthesis, structures, intrinsic magnetic properties, theoretical and experimental methods; the followed four chapters mainly focus on related phenomena and potential applications.

468p tudohanhtau1006 29-03-2024 2 1   Download

Ebook "Polymers at cryogenic temperatures" covers cryogenic treatment, properties and applications of cryo-treated polymer materials. Written by numerous international experts, the twelve chapters in this book offer the reader a comprehensive picture of the latest findings and developments, as well as an outlook on the field. Cryogenic technology has seen remarkable progress in the past few years and especially cryogenic properties of polymers are attracting attention through new breakthroughs in space, superconducting, magnetic and electronic techniques.

292p coduathanh1122 27-03-2024 9 1   Download

In ebook "Electron, spin and momentum densities and chemical reactivity" the electron density of a non-degenerate ground state system determines essentially all physical properties of the system. This statement of the Hohenberg–Kohn theorem of Density Functional Theory plays an exceptionally important role among all the fundamental relations of Molecular Physics.

344p coduathanh1122 27-03-2024 4 1   Download

Ebook "Electron paramagnetic resonance: Elementary theory and practical applications (Second edition)" provides an introduction to the underlying theory, fundamentals, and applications of EPR spectroscopy, as well as new developments in the area. Knowledge of the topics presented will allow the reader to interpret of a wide range of EPR spectra, as well as help them to apply EPR techniques to problem solving in a wide range of areas: organic, inorganic, biological, and analytical chemistry; chemical physics, geophysics, and minerology.

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Part 2 book "An introduction to materials engineering and science for chemical and materials engineers" includes content: Electrical, magnetic and optical properties of materials; processing of materials; case studies in materials selection.

422p muasambanhan09 16-03-2024 6 2   Download

Part 2 book "Sears and Zemansky's university physics - With modern physics" includes content: Mechanical waves; sound and hearing; temperature and heat; thermal properties of matter; the first law of thermodynamics; the second law of thermodynamics; electric charge and electric field; Gauss’s law; electric potential; capacitance and dielectrics; current, resistance, and electromotive force; direct current circuits; magnetic field and magnetic forces; sources of magnetic field; electromagnetic induction; inductance; alternating current; electromagnetic waves.

608p muasambanhan09 16-03-2024 4 1   Download

In ebook "Complex macromolecular systems II (Advances in polymer science, Volume 228)" the combination and interplay of these well-balanced “internal fields” with “external fields” such as mechanical, electrical, magnetic, electromagnetic, and/or the interactions with surfaces are a powerful tool to create defect-free and perfectly ordered macromolecular structures on a macroscopic scale, leading to new material properties, processes, and applications.

221p manmanthanhla0201 26-02-2024 4 1   Download

Part 1 book "Quantum physics of atoms, molecules, solids, nuclei, and particles" includes content: Thermal radiation and Planck's postulate; photons — particlelike properties of radiation; de Broglie's postulate — wavelike properties of particles; Bohr's model of the atom; Schrödinger's theory of quantum mechanics; solutions of time independent Schrödinger equations; one electron atoms; magnetic dipole moments, spin, and transition rates; multielectron atoms — ground states and x-ray excitations.

364p muasambanhan07 18-02-2024 11 1   Download