Solid-liquid transition in Nb powder determined by third harmonic susceptibility

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dc.contributor.authorOliveira, A. A. M.
dc.contributor.authorLisboa Filho, Paulo Noronha [UNESP]
dc.contributor.authorOrtiz, W. A.
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:26:17Z
dc.date.available2014-05-20T13:26:17Z
dc.date.issued2008-07-01
dc.description.abstractMeasurements of the third harmonic of the AC-susceptibility were employed to determine the boundaries of the linear regime of the magnetic response of Nb powder. Non-linear contributions to the magnetic response reveal the occurrence of a structured phase, disappearing as the vortex lattice melts to the liquid state. A systematic study of the third harmonic was conducted to determine how its onset temperature depends on experimental parameters, such as the frequency and amplitude of the excitation field. The melting line (ML) has been extracted from the onset temperature measured at low-frequencies and low-excitation fields in the presence of DC magnetic fields. The study indicates that the ML can be described by a 3D vortex-glass model, except at lower fields, where the system experiences a depinning crossover, and the best description of the experimental data is provided by a 3D Bose-glass model. (c) 2008 Elsevier B. V. All rights reserved.en
dc.description.affiliationUniversidade Federal de São Carlos (UFSCar), Dept Fis, Grp Superconductividade & Magnetismo, BR-13560 São Carlos, SP, Brazil
dc.description.affiliationUniv Estadual Paulista, Dept Fis, Lab Mat Supercondutores, Bauru, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Fis, Lab Mat Supercondutores, Bauru, SP, Brazil
dc.format.extentE510-E512
dc.identifierhttp://dx.doi.org/10.1016/j.jmmm.2008.02.135
dc.identifier.citationJournal of Magnetism and Magnetic Materials. Amsterdam: Elsevier B.V., v. 320, n. 14, p. E510-E512, 2008.
dc.identifier.doi10.1016/j.jmmm.2008.02.135
dc.identifier.issn0304-8853
dc.identifier.lattes1353862414532005
dc.identifier.orcid0000-0002-7734-4069
dc.identifier.urihttp://hdl.handle.net/11449/8443
dc.identifier.wosWOS:000255512600151
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofJournal of Magnetism and Magnetic Materials
dc.relation.ispartofjcr3.046
dc.relation.ispartofsjr0,786
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectthird harmonicen
dc.subjectmelting lineen
dc.subjectniobiumen
dc.subjectdepinningen
dc.subjectvortex matteren
dc.titleSolid-liquid transition in Nb powder determined by third harmonic susceptibilityen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.author.lattes1353862414532005[2]
unesp.author.orcid0000-0002-7734-4069[2]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências, Baurupt
unesp.departmentFísica - FCpt

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