Single-vortex pinning and penetration depth in superconducting NdFeAsO1-xFx

dc.contributor.author Zhang, Jessie
dc.contributor.author Kim, Jeehoon
dc.contributor.author Huefner, Magdalena
dc.contributor.author Canfield, Paul
dc.contributor.author Ye, Cun
dc.contributor.author Kim, Stella
dc.contributor.author Canfield, Paul
dc.contributor.author Prozorov, Ruslan
dc.contributor.author Auslaender, Ophir
dc.contributor.author Hoffman, Jennifer
dc.contributor.department Ames Laboratory
dc.contributor.department Physics and Astronomy
dc.date 2020-03-05T16:20:51.000
dc.date.accessioned 2020-06-30T06:20:49Z
dc.date.available 2020-06-30T06:20:49Z
dc.date.copyright Thu Jan 01 00:00:00 UTC 2015
dc.date.issued 2015-10-01
dc.description.abstract <p>We use a magnetic force microscope (MFM) to investigate single-vortex pinning and penetration depth in NdFeAsO1−xFx, one of the highest-Tc iron-based superconductors. In fields up to 20 G, we observe a disordered vortex arrangement, implying that the pinning forces are stronger than the vortex-vortex interactions. We measure the typical force to depin a single vortex, Fdepin≃4.5 pN, corresponding to a critical current up to Jc≃7×105 A/cm2. Furthermore, our MFM measurements allow the first local and absolute determination of the superconducting in-plane penetration depth in NdFeAsO1−xFx,λab=320±60 nm, which is larger than previous bulk measurements.</p>
dc.description.comments <p>This article is published as Zhang, Jessie T., Jeehoon Kim, Magdalena Huefner, Cun Ye, Stella Kim, Paul C. Canfield, Ruslan Prozorov, Ophir M. Auslaender, and Jennifer E. Hoffman. "Single-vortex pinning and penetration depth in superconducting NdFeAsO 1− x F x." <em>Physical Review B</em> 92, no. 13 (2015): 134509. DOI: <a href="http://dx.doi.org/10.1103/PhysRevB.92.134509" target="_blank">10.1103/PhysRevB.92.134509</a>. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/physastro_pubs/582/
dc.identifier.articleid 1595
dc.identifier.contextkey 16718616
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath physastro_pubs/582
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/57368
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/physastro_pubs/582/2015_CanfieldPaul_SingleVortex.pdf|||Sat Jan 15 01:01:52 UTC 2022
dc.source.uri 10.1103/PhysRevB.92.134509
dc.subject.disciplines Condensed Matter Physics
dc.title Single-vortex pinning and penetration depth in superconducting NdFeAsO1-xFx
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication c5a8128b-7d98-4b8f-92d7-b1385e345713
relation.isOrgUnitOfPublication 25913818-6714-4be5-89a6-f70c8facdf7e
relation.isOrgUnitOfPublication 4a05cd4d-8749-4cff-96b1-32eca381d930
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