Results 91 to 100 of about 62,131 (245)

Thermodynamics as a nonequilibrium path integral

, 2010
Thermodynamics is a well developed tool to study systems in equilibrium but no such general framework is available for non-equilibrium processes. Only hope for a quantitative description is to fall back upon the equilibrium language as often done in ...
Akhiezer N I, Barkhausen H, Bertotti G, Bhattacharyya A, Bochkov G N, Bochkov G N, Cohen E G D, Horowitz J, Poulomi Sadhukhan, Somendra M Bhattacharjee   +9 more
core   +1 more source

A study on the effect of dislocation on the magnetic properties of nickel using magnetic NDE methods [PDF]

, 1987
Dislocations affect the magnetic properties of ferromagnetic materials by pinning the domain walls. The primary mechanism is interaction between the stress fields of dislocation and domain walls. Using magnetic nondestructive methods, namely the acoustic
Krönmuller H., O. Buck, R. B. Thompson, R. Ranjan, Rudyak V. M., Scherpereel D. E., Tiittoo S.   +6 more
core   +2 more sources

Optimisation of amplitude distribution of magnetic Barkhausen noise [PDF]

Journal of Electrical Engineering, 2017
Abstract The magnetic Barkhausen noise (MBN) measurement method is a widely used non-destructive evaluation technique used for inspection of ferromagnetic materials. Besides other influences, the excitation yoke lift-off is a significant issue of this method deteriorating the measurement accuracy.
Jozef Pal’a, Vladimír Jančárik
openaire   +1 more source

Magnetization fluctuations and magnetic after-effect probed via the anomalous Hall effect

Physical Review Research
Taking advantage of the anomalous Hall effect, we electrically probe low-frequency magnetization fluctuations at room temperature in a thin ferromagnetic Pt/Co/AlO_{x} layer stack with perpendicular magnetic anisotropy. We observe a strong enhancement of
Nadine Nabben, Giacomo Sala, Ulrich Nowak, Matthias Krüger, Sebastian T. B. Goennenwein   +4 more
doaj   +1 more source

Tensile Stress Effect on Magnetic Barkhausen Noise of Silicon Steel Single Crystal (Measurements and Simulations)

2024 IEEE International Magnetic Conference - Short papers (INTERMAG Short papers)
The Magnetic Barkhausen Noise (MBN) measurement can be used to evaluate non-destructively mechanical internal stress in electrical steel laminations. However such evaluation is complex as various factors can distort the MBN signal similarly.
B. Ducharne, E. Wasniewski, Laurent Daniel, M. Domenjoud, P. Fagan   +4 more
semanticscholar   +1 more source

Barkhausen Noise and Critical Scaling in the Demagnetization Curve

, 2002
The demagnetization curve, or initial magnetization curve, is studied by examining the embedded Barkhausen noise using the non-equilibrium, zero temperature random-field Ising model.
A. Berger, F. Colaiori, J.H. Carpenter, J.P. Sethna, J.P. Sethna, John H. Carpenter, K. Dahmen, Karin A. Dahmen, L. Dante, M.C. Kuntz, O. Perković, O. Perković, P. Bak, P. Cizeau, S. Zapperi, S. Zapperi   +15 more
core   +1 more source

Correlations of triggering noise in driven magnetic clusters

, 2000
We show that the temporal fluctuations $\Delta H(t)$ of the threshold driving field $H(t)$, which triggers an avalanche in slowly driven disordered ferromagnets with many domains, exhibit long-range correlations in space and time.
Bahiana, Banavar, Bertotti, Bosiljka Tadić, Christensen, Cieplak, Dhar, Geoffroy, Ji, Kardar, Krishnamurthy, Livingston, Maritan, Medina, Meisel, Nowak, Pazsuski, Pazsuski, Perković, Roux, Sabhapandit, Sneppen, Spasojević, Tadić, Tadić, Tadić, Tadić, Tadić, Tang, Urbach, Vives, Vázquez   +31 more
core   +1 more source

Statistics of Avalanches with Relaxation, and Barkhausen Noise: A Solvable Model

, 2013
We study a generalization of the Alessandro-Beatrice-Bertotti-Montorsi (ABBM) model of a particle in a Brownian force landscape, including retardation effects.
Dobrinevski, Alexander, Doussal, Pierre Le, Wiese, Kay Jörg   +2 more
core   +2 more sources

Application of Magnetic Noise Method to Control the Mechanical Anisotropy of Ferromagnetic Materials

Приборы и методы измерений, 2019
Presence of anisotropy of the ferromagnetic materials' properties determines the need for its research and control, since it has a significant impact on the basic physicomechanical characteristics of details, products and constructions.
V. N. Busko, A. A. Osipov
doaj   +1 more source

Suspending test masses in terrestrial millihertz gravitational-wave detectors: a case study with a magnetic assisted torsion pendulum

, 2017
Current terrestrial gravitational-wave detectors operate at frequencies above 10 Hz. There is strong astrophysical motivation to construct low-frequency gravitational-wave detectors capable of observing 10 mHz - 10Hz signals.
Anderson, Russell P, Levin, Yuri, Thrane, Eric, Turner, Lincoln D   +3 more
core   +1 more source