Results 71 to 80 of about 5,938 (188)

Avalanches in mean-field models and the Barkhausen noise in spin-glasses

, 2010
We obtain a general formula for the distribution of sizes of "static avalanches", or shocks, in generic mean-field glasses with replica-symmetry-breaking saddle points.
Balents L., Bouchaud J-P, Bouchaud J. P., Emig T., Franz S., Hartmann A. K., K. J. Wiese, Krzakala F., Le Doussal P., Le Doussal P., Le Doussal P. Müller M. Wiese K. J., M. Müller, Montanari A., Mézard M., P. Le Doussal, Repain V., Vannimenus J., Young A. P., Young A. P.   +18 more
core   +2 more sources

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

Effect of Measurement Conditions on Barkhausen Noise Parameters

Advances in Electrical and Electronic Engineering, 2008
The Barkhausen noise was measured in plastically deformed low-carbon steel at various measurement conditions. Strip samples magnetized by a single yoke were used for investigation.
Jozef Pala, Jan Bydzovsky
doaj  

Atomistic Simulations of Magnetic Amorphous Solids: Magnetostriction, Barkhausen noise and novel singularities

, 2013
We present results of atomistic simulations of a new model of a magnetic amorphous solid subjected to external mechanical strains and magnetic fields.
Dasgupta, Ratul, Gupta, Bhaskar Sen, Hentschel, H. George E., Procaccia, Itamar   +3 more
core   +1 more source

Beyond power laws: Universality in the average avalanche shape

, 2010
We report the measurement of multivariable scaling functions for the temporal average shape of Barkhausen noise avalanches, and show that they are consistent with the predictions of simple mean-field theories.
Bohn, Felipe, Durin, Gianfranco, Papanikolaou, Stefanos, Sethna, James P., Sommer, Rubem L., Zapperi, Stefano   +5 more
core   +1 more source

Dynamic criticality in driven disordered systems: Role of depinning and driving rate in Barkhausen noise

, 1999
We study Barkhausen noise in a diluted two-dimensional Ising model with the extended domain wall and weak random fields occurring due to coarse graining.
Bertotti, Bosiljka Tadić, Durin, Geoffroy, Kardar, Levingston, Meisel, Paczuski, Spasojević, Tadić, Tadić, Tadić, Tadić, Tang, Urbach, Vives, Zapperi   +16 more
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Hysteresis and Noise in Stripe and Clump Forming Systems

, 2005
We use simulations to examine hysteresis and noise in a model system that produces heterogeneous orderings including stripe and clump phases. In the presence of a disordered substrate, these heterogeneous phases exhibit 1/f$^\alpha$ noise and hysteresis ...
A. R Bishop, C Reichhardt, C. J. Olson Reichhardt, Gor'Kov L. P., Panagopoulos C. \textitet al.   +4 more
core   +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

Application of flaw detection methods for detection of fatigue processes in low-alloyed steel [PDF]

Transport Problems, 2007
The paper presents the investigations conducted in the Fraunhofer Institute (IZFP Saarbrücken) by use of a BEMI microscope (BEMI= Barkhausenrausch- und Wirbelstrom-Mikroskopie or Barkhausen Noise and Eddy Current Microscopy). The ability to detect cyclic
Zbigniew H. śUREK
doaj  

Acoustic emission signals resulting from the drying induced fractures of Phyllostachys Pubescens bamboo, Evidence of scale free phenomena

, 2015
I have performed experimental measurements of acoustic emission signals resulting from the drying process of Phyllostachys Pubescens bamboo. The emphasis was on identifying individual events, and characterize them according to their time span and energy ...
Villalobos, Gabriel
core   +1 more source