Giant Magnetoimpedance Effect In Soft Magnetic Wires For Sensor Applications

dc.creatorVazquez M.
dc.creatorKnobel M.
dc.creatorSanchez M.L.
dc.creatorValenzuela R.
dc.creatorZhukov A.P.
dc.date1997
dc.date2015-06-30T14:49:21Z
dc.date2015-11-26T14:57:54Z
dc.date2015-06-30T14:49:21Z
dc.date2015-11-26T14:57:54Z
dc.date.accessioned2018-03-28T22:09:40Z
dc.date.available2018-03-28T22:09:40Z
dc.identifier
dc.identifierSensors And Actuators, A: Physical. , v. 59, n. 01/03/15, p. 20 - 29, 1997.
dc.identifier9244247
dc.identifier
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-0031125941&partnerID=40&md5=dd4cecfbd373f4cbe76b463e4d4ea8bf
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/100195
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/100195
dc.identifier2-s2.0-0031125941
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1255748
dc.descriptionThe giant magneto-impedance effect (GMI) consists of the large relative change of the impedance (up to around 300%) observed in magnetically very soft ribbon and wire alloys under the application of dc magnetic fields (units of kA m-1). The phenomenology of the GMI effect is firstly described including a discussion about its origin which mainly lies in the classical skin-effect. An alternative approach to GMI phenomena considering equivalent circuits is also introduced. The main requirements to detect GMI is to count on a sample with very large circular susceptibility and reduced resistivity provided the frequency of the ac current flowing along the sample (necessary to evaluate the impedance) is high enough (roughly above 0.1 MHz for most samples here considered). The dependence on dc magnetic field, mechanical stresses and particularly on thermal treatments resulting in the induced magnetic anisotropies or in the devitrification of amorphous samples into a nanocrystalline structure are reviewed. First results on GMI in glass-coated amorphous microwires are also reported. The use of the GMI as a tool for studying the inner circular magnetization process or for evaluating the magnetostriction is introduced. Finally, a description on various aspects regarding the development of magnetic field, current, proximity and stress sensor applications is presented. © 1997 Elsevier Science S.A.
dc.description59
dc.description01/03/15
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dc.description29
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dc.languageen
dc.publisher
dc.relationSensors and Actuators, A: Physical
dc.rightsfechado
dc.sourceScopus
dc.titleGiant Magnetoimpedance Effect In Soft Magnetic Wires For Sensor Applications
dc.typeArtículos de revistas


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