Modeling of micromagnetic Barkhausen activity using a stochastic process extension to the theory of hysteresis Jiles, David Sipahi, Levent Jiles, David Williams, G.
dc.contributor.department Materials Science and Engineering 2018-02-14T11:04:45.000 2020-06-30T06:06:39Z 2020-06-30T06:06:39Z Fri Jan 01 00:00:00 UTC 1993 2013-09-25 1993-05-15
dc.description.abstract <p>Recent work by Bertotti [IEEE Trans. Magn. <strong>MAG‐24</strong>, 621 (1988)] and others has shown that it is possible to model the micromagnetic Barkhausen discontinuities at the coercive point using a two‐parameter stochastic model. However, the present formulation of the model is restricted to limited regions of the hysteresis curve over which <em>dM</em>/<em>dH</em> is approximately constant and when<em>dH</em>/<em>dt</em> is held at a constant rate. A natural extension of this model is to take the basic result, in which the level of Barkhausen activity in one time period is related to the activity in the previous time period, and increment it by a small amount which is dependent on the differential permeability. The extension of the model proposed here uses the theory of ferromagnetichysteresis to determine the differential permeability at any point of the hysteresis loop. The Barkhausen activity is then assumed to vary in proportion to the differential permeability. The resulting model allows the Barkhausen sum of discontinuous changes in magnetization to be modelled around the entire hysteresis loop, leading to an important generalization of the basic model.</p>
dc.description.comments <p>The following article appeared in <em>Journal of Applied Physics </em>73 (1993): 5830 and may be found at <a href="" target="_blank"></a>.</p>
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dc.identifier archive/
dc.identifier.articleid 1113
dc.identifier.contextkey 6024398
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath mse_pubs/113
dc.language.iso en
dc.source.bitstream archive/|||Fri Jan 14 18:46:52 UTC 2022
dc.source.uri 10.1063/1.353541
dc.subject.disciplines Electromagnetics and Photonics
dc.subject.disciplines Engineering Physics
dc.subject.disciplines Materials Science and Engineering
dc.subject.keywords Ames Laboratory
dc.subject.keywords CNDE
dc.subject.keywords Electrical and Computer Engineering
dc.subject.keywords Barkhausen effects
dc.subject.keywords Magnetic hysteresis
dc.subject.keywords Stochastic processes
dc.subject.keywords Ferromagnetism
dc.title Modeling of micromagnetic Barkhausen activity using a stochastic process extension to the theory of hysteresis
dc.type article
dc.type.genre article
dspace.entity.type Publication
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relation.isOrgUnitOfPublication bf9f7e3e-25bd-44d3-b49c-ed98372dee5e
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