On the asymptotic critical behavior of Fe17Dy2, Fe17Ho2 and Fe17Er2 single crystals

dc.creatorCoelho, AA
dc.creatorMohan, CV
dc.creatorSeeger, M
dc.creatorKronmuller, H
dc.creatorGama, S
dc.date1997
dc.dateAUG
dc.date2014-12-16T11:35:54Z
dc.date2015-11-26T16:08:52Z
dc.date2014-12-16T11:35:54Z
dc.date2015-11-26T16:08:52Z
dc.date.accessioned2018-03-28T22:57:27Z
dc.date.available2018-03-28T22:57:27Z
dc.identifierPhysica Status Solidi B-basic Research. Akademie Verlag Gmbh, v. 202, n. 2, n. 977, n. 992, 1997.
dc.identifier0370-1972
dc.identifierWOS:A1997XT56200036
dc.identifier10.1002/1521-3951(199708)202:2<977
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/81859
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/81859
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/81859
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1266473
dc.descriptionThe asymptotic critical behavior of Fe17Dy2, Fe17Ho2 and Fe17Er2 single crystals is investigated by deducing the asymptotic and correction-to-scaling critical exponents from detailed magnetic polarization measurements performed in the vicinity of the Curie temperature, where these systems undergo a magnetic phase transition from a ferrimagnetic to a paramagnetic state. These intermetallic compounds are characterized by a planar anisotropy for which, so far, measurements of critical exponents are not available. Well-defined phase transitions are found to exist in all these three systems with values of the asymptotic critical exponents very close to those predicted by the renormalization group calculations for a three-dimensional isotropic short-range Heisenberg ferromagnet. The nonanalytic corrections to the singular behavior at the Curie point, which originate from the nonlinear irrelevant scaling fields were found to have a significant role in deducing the true asymptotic critical amplitudes. Since the main interest of the present study lies only in the critical region, we have, for the time being, not investigated about these correction terms outside the critical region.
dc.description202
dc.description2
dc.description977
dc.description992
dc.languageen
dc.publisherAkademie Verlag Gmbh
dc.publisherBerlin
dc.publisherAlemanha
dc.relationPhysica Status Solidi B-basic Research
dc.relationPhys. Status Solidi B-Basic Res.
dc.rightsfechado
dc.sourceWeb of Science
dc.subjectMagnetic Phase-transition
dc.subjectCritical Exponents
dc.subjectQuenched Disorder
dc.subjectAmorphous Fe90zr10
dc.subjectField-theory
dc.subjectFerromagnets
dc.subjectAmplitudes
dc.subjectUniversality
dc.subjectFe14nd2b
dc.subjectAlloys
dc.titleOn the asymptotic critical behavior of Fe17Dy2, Fe17Ho2 and Fe17Er2 single crystals
dc.typeArtículos de revistas


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