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College of Natural Sciences(자연과학대학)Dept. of Physics(물리학과)PH-Journal Papers(저널논문)

Structure-independent universality of Barkhausen criticality in iron nitride thin films

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dc.contributor.authorAtiq, Shahidko
dc.contributor.authorSiddiqi, Saadat Anwarko
dc.contributor.authorLee, Hun-Sungko
dc.contributor.authorAnwar, M. Sabiehko
dc.contributor.authorShin, Sung-Chulko
dc.date.accessioned2011-01-28T05:29:34Z-
dc.date.available2011-01-28T05:29:34Z-
dc.date.created2012-02-06-
dc.date.created2012-02-06-
dc.date.issued2010-07-
dc.identifier.citationSOLID STATE COMMUNICATIONS, v.150, no.27-28, pp.1169 - 1172-
dc.identifier.issn0038-1098-
dc.identifier.urihttp://hdl.handle.net/10203/21899-
dc.description.abstractDiscrete and jerky jumps during the process of magnetization reversal in ferromagnetic systems cause Barkhausen intermittency. We have investigated critical scaling behavior of the Barkhausen avalanche of 2-dimensional gamma-Fe(4)N thin films using a magneto-optic microscope magnetometer (MOMM) capable of time-resolved magnetic domain images. A statistical analysis of the fluctuating size of Barkhausen jumps from numerous repetitive experiments shows a power-law scaling behavior in the ferromagnetic iron nitride system exhibiting a critical exponent value of tau = 1.02 within the experimental error. The value of critical exponent is found to manifest universality irrespective of the degree of texture of the film induced by annealing temperature. (C) 2010 Elsevier Ltd. All rights reserved.-
dc.description.sponsorshipThe authors like to thank Kwang-Su Ryu for his kind help in experimental measurements. This research work was supported by IRSIP, the Higher Education Commission (HEC) of Pakistan and the National Research Laboratory Program (Contract No. R0A-2007- 000-20026-0), through the National Research Foundation of Korea funded by the Ministry of Education, Science and Technology.en
dc.languageEnglish-
dc.language.isoen_USen
dc.publisherPERGAMON-ELSEVIER SCIENCE LTD-
dc.subjectMAGNETIZATION REVERSAL-
dc.subjectDOMAIN-WALL-
dc.subjectMICROSCOPY-
dc.subjectTRANSITION-
dc.subjectAVALANCHES-
dc.subjectDYNAMICS-
dc.subjectMOTION-
dc.titleStructure-independent universality of Barkhausen criticality in iron nitride thin films-
dc.typeArticle-
dc.identifier.wosid000279699800002-
dc.identifier.scopusid2-s2.0-77954218337-
dc.type.rimsART-
dc.citation.volume150-
dc.citation.issue27-28-
dc.citation.beginningpage1169-
dc.citation.endingpage1172-
dc.citation.publicationnameSOLID STATE COMMUNICATIONS-
dc.identifier.doi10.1016/j.ssc.2010.04.022-
dc.embargo.liftdate9999-12-31-
dc.embargo.terms9999-12-31-
dc.contributor.localauthorShin, Sung-Chul-
dc.contributor.nonIdAuthorAtiq, Shahid-
dc.contributor.nonIdAuthorSiddiqi, Saadat Anwar-
dc.contributor.nonIdAuthorAnwar, M. Sabieh-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorThin films-
dc.subject.keywordAuthorEpitaxy-
dc.subject.keywordPlusMAGNETIZATION REVERSAL-
dc.subject.keywordPlusDOMAIN-WALL-
dc.subject.keywordPlusMICROSCOPY-
dc.subject.keywordPlusTRANSITION-
dc.subject.keywordPlusAVALANCHES-
dc.subject.keywordPlusDYNAMICS-
dc.subject.keywordPlusMOTION-
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