Single-vortex pinning and penetration depth in superconducting NdFeAsO1-xFx Zhang, Jessie Kim, Jeehoon Huefner, Magdalena Canfield, Paul Ye, Cun Kim, Stella Canfield, Paul Prozorov, Ruslan Auslaender, Ophir Hoffman, Jennifer
dc.contributor.department Ames Laboratory
dc.contributor.department Physics and Astronomy 2020-03-05T16:20:51.000 2020-06-30T06:20:49Z 2020-06-30T06:20:49Z Thu Jan 01 00:00:00 UTC 2015 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="" target="_blank">10.1103/PhysRevB.92.134509</a>. Posted with permission.</p>
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dc.identifier archive/
dc.identifier.articleid 1595
dc.identifier.contextkey 16718616
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath physastro_pubs/582
dc.language.iso en
dc.source.bitstream archive/|||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
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