Multifractal analysis of Barkhausen noise reveals the dynamic nature of criticality at hysteresis loop

2016 ◽  
Vol 2016 (6) ◽  
pp. 063305 ◽  
Author(s):  
Bosiljka Tadić
Keyword(s):  
Hysteresis Loop ◽  
Multifractal Analysis ◽  
Barkhausen Noise ◽  
Dynamic Nature

Barkhausen noise power versus size of a minor hysteresis loop

1973 ◽  
Vol 44 (10) ◽  
pp. 4739-4742 ◽  
Author(s):  
John A. Baldwin ◽  
Frederick Milstein
Keyword(s):  
Hysteresis Loop ◽  
Barkhausen Noise ◽  
Noise Power ◽  
A Minor ◽  
Minor Hysteresis Loop

Statistical and Multifractal Properties of Barkhausen Jumps in Exchange-Coupled Antiferromagnetic/Ferromagnetic Bilayers

2014 ◽  
Vol 215 ◽  
pp. 35-40 ◽  
Author(s):  
Ivan V. Shashkov ◽  
Mikhail A. Lebyodkin ◽  
Vladimir S. Gornakov
Keyword(s):  
Statistical Analysis ◽  
Hysteresis Loop ◽  
Multifractal Analysis ◽  
Material Structure ◽  
Statistical Distributions ◽  
Magnetization Process ◽  
Pinning Centers ◽  
Jump Size ◽  
Optical Indicator ◽  
Indicator Film

Statistical and multifractal properties of Barkhausen jumps in exchange-coupled ferromagnet/antiferromagnet bilayers are studied on Co/IrMn and NiFe/NiO heterostructures using a magneto-optical indicator film technique. The statistical analysis proves a nonstochastic character of magnetization jumps. In particular, power-law behavior is observed for Co/IrMn samples. Furthermore, the statistics depends on the ferromagnet layer thickness and antiferromagnet layer material structure. The average jump size displays an asymmetry between the forward and backward branches of the hysteresis loop, particularly pronounced for the structure with a thin Co layer. In spite of the observation of such an asymmetry in the activity of the domain nucleation and pinning centers, the statistical distributions of jumps do not show any significant differences for two branches of the hysteresis loop. The conclusion on a nonrandom character of the magnetization process is supported by the multifractal analysis which reveals the presence of correlations in the time arrangement of the Barkhausen jumps.

On the Mechanical Properties Determination of Armco Steel Using Magnetic Hysteresis Loop and Barkhausen Noise

2011 ◽  
Vol 495 ◽  
pp. 269-271
Author(s):  
K. Kosmas
Keyword(s):  
Mechanical Properties ◽  
Plastic Deformation ◽  
Magnetic Properties ◽  
Hysteresis Loop ◽  
Mechanical Load ◽  
Magnetic Hysteresis ◽  
Magnetic Hysteresis Loop ◽  
Barkhausen Noise

Magnetic properties, namely B-H loops and Barkhausen noise, have been determined with respect to mechanical load in Armco steels. The monotonic response illustrated a clearly verified knee, corresponding to the initiation of plastic deformation.

scholarly journals Characteristics of Barkhausen Noise Properties and Hysteresis Loop on Tensile Stressed Rolled Steels

2011 ◽  
Vol 16 (4) ◽  
pp. 427-430 ◽  
Author(s):  
Hiroaki Kikuchi ◽  
Katsuyuki Ara ◽  
Yasuhiro Kamada ◽  
Satoru Kobayashi
Keyword(s):  
Hysteresis Loop ◽  
Barkhausen Noise
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