Hysteresis loop Definition and 20 Threads

(Edited with suggestions from Berkeman) After reading the original 1930 paper by Sawyer and Tower (link to original paper here), I noticed that their hysteresis loops are mirrored around the y-axis from many of the ferroelectric hysteresis loops reported today ( see FE examples here, here...

Why does hysteresis loss cause heat and why the heat proportional the area of hysteresis loop?

Does anyone have an idea how to insert a BH loop like the one I have attached in Ansys Maxwell and not get an error like in the other picture which is also attached? I have seen it multiple times in different texts but can't define one myself without getting this annoying error. Also the...

I am trying to simulate an electric motor in ansys maxwell software, but I can't define the whole loop in four quadrants for the material used in the rotor however it is essential to do this since the motor is of hysteresis type and works on the principle of working point moving all around the...

Hi forums, Following is the hysteresis loop of a standard memristor: Please note that, the red one is for lowest frequency and black for highest frequency. From the graph, one can take the following observations: 1> As frequency increases, area of graph decreases 2> With increase in frequency...

hello i have a few questions regarding hysteresis loop in ferromagnets as showen here . i had an experiment in which i took a piece of gadolinium and cooled it down using liquid nitrogen , than i put it in an apparatus as showen here , so i induct an oscillating magnetic field on it , forcing...

In a lab we had to measure the remnant magnetisation of a hysteresis loop with a permalloy core. The amplitude of the input sinusoidal wave was varied and the resulting remnant magnetisation measured. This was then plotted resulting in the remnant magnetisation varying sinusoidal with the input...

Homework Statement " Plot remanent magnetization versus the sample angle for the sample. Derive an equation for the remanent magnetization using the definition of a hysteresis loop and Stoner-Wohlfarth model. " ##H## magnetic field ##K_u## anisotropy constant ##M_s## saturation magnetization...

I am taking an experimental course which requires us to conduct experiments by ourselves. One of the tasks is to demonstrate the flux pinning effect of a type II superconductor YBCO by magnetic levitation. The professor asked me to discuss the effect by using the hysteresis loop (magnetization...

Hello, I have piezoelectric film. I want to characterize ferroectricity. which exact equipment and circuit are used for measuring polarization-electric field hysteresis loop. Thanks

Let's consider the Magnetic hysteresis loop of a certain material: https://www.nde-ed.org/EducationResources/CommunityCollege/MagParticle/Physics/HysteresisLoop.htm is an example. In many sites and books it is written that its area is proportional to the energy wasted as heat, so A = kE_d. In...

hi my dear friends i face with a problem in ansoft maxwell; i want to import a hysteresis material's loop into maxwell's material s libraray but i cant!:( is there anyone who can help me? with the best wishes:) pedro

Wide/Narrow Hysteresis loops, what's the difference? When calculating the work done to magnetize a ferromagnetic material, calculating the hysteresis loop is the right way? I know the narrower loop(soft) needs less energy(work) to magnetize or demagnetize it is that true? That's why it's...

Hi there, Would anyone help me in simulating hysteresis loop in MATLAB? Thank You!

Homework Statement What hysteresis loop shape would you require for a magnetic material to be used in A) a permanent magnet B) transformer core The Attempt at a Solution No idea what this means...but it is for my lab tomorrow so I probably should. Any help would be greatly...

For a ferromagnetic material in the hysteresis loop, when increasing field from H=Hc, its magnetization (M) will saturate. But if we decrease field instead, will M decreases clockwise according to the loop? How can we make the ferromagnetic material back into the initial state (H=0, M=0)...

Hysteresis loop in probe?? Hello guys, I have done the Magneto-optical Kerr effect experiment, studying the hysteresis loop over some pieces of ferro- and ferri-magnetic pieces of metals (CDs and MiniCDs). The problem is the following, we first started by creating the calibration curve...

Hallo, If I have an hystersis loop (of ferromagnets) in form of scattered points in MATLAB what is the function or tool which i can use in order drew a continues hystersis curve(loop)? Thanks, Omri

Hallo, Does anyone familiar with an equation that describs hysteresis loop and First Magnetisation in ferromagnets? Thanks Omri

What instrument would I need to get a hysteresis loop (Flux Density vs Magnetizing Force) for an inductor? Is it something that can be easily obtained given the proper equipment? Thanks! -Shad