Review Article  |   Volume 1, Issue 1 DOI: 10.35840/2631-5068/6503

Simplifications in 3D High-Low Frequency Models of Multi-winding Magnetic Components (EE & Toroidal Cores)

J.R. González, Roberto Prieto and Rafael Asensi
Abstract

Not every magnetic component can be simulated with 3D finite elements tools. Nowadays, there are hard difficulties to simulate 3D models because of computer limitations and the 2D models have not enough accuracy. The proposed method will simulate the magnetic component (EE and Toroidal core) in 3D and decrease the needed processing time. The method consists of several simplifications and adjustments to determine the sought parameters (resistance & inductance) in low/high frequency without losing accuracy when compared with the real 3D model simulation.

PDF   |    Full Text  |   EPUB   |   XML

Research Article  |   Volume 1, Issue 1 DOI: 10.35840/2631-5068/6502

Classical Dipole Emission Rate of Energy Compared with Quantum Dissipative Emission Rate

Stanislaw Olszewski
Abstract

The time rate of energy emission in three quantum simple systems - the hydrogen atom, electron particle in a one-dimensional potential box and harmonic oscillator - has been calculated in two ways. The first one, based on the dipole approximation for the emitted energy, refers to classical electrodynamics. The other way is corresponding to quantum transitions of a single electron between definite energy levels. In this case the time of any transition is obtained by applying the Joule law characteristic for the dissipation of energy. The intensity of quantum transitions is found to be by several orders higher than the classical ones.

PDF   |    Full Text  |   EPUB   |   XML

Research Article  |   Volume 1, Issue 1 DOI: 10.35840/2631-5068/6501

A New Technique for Measuring the Chemical Potential of Magnons Confined in Nanostructures

Chidubem A. Nwokoye, Edward Della Torre, Lawrence H. Bennett, Abid Siddique and Frank A. Narducci
Abstract

The chemical potential provides an in-depth insight into the temperature variation of magnons and other quantum mechanical features. Here we present a novel magneto-optical technique to measure the chemical potential of magnons influenced by photon-magnon interactions. Our result shows the required negative chemical potential of magnons of Co/Pd in quasi-equilibrium above the observed Bose-Einstein condensation phase-transition temperature. The technique generates a single curve, contrasting with multiple curves obtained in a non-magneto-optical technique.

PDF   |    Full Text  |   EPUB   |   XML



Volume 1 Issue 1

© 2020 VIBGYOR ePress. All Rights Reserved.