Enhanced Pinning Properties of Laser-Irradiated Bulk MgB2 Superconductors

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dc.authorid57206025149
dc.authorid7004642659
dc.contributor.authorErdem O.
dc.contributor.authorYanmaz E.
dc.date.accessioned20.04.201910:49:12
dc.date.accessioned2019-04-20T21:43:20Z
dc.date.available20.04.201910:49:12
dc.date.available2019-04-20T21:43:20Z
dc.date.issued2017
dc.departmentBayburt Üniversitesien_US
dc.description.abstractIn order to investigate the effect of laser irradiation on the superconducting properties of MgB2, a pellet-shaped sample was produced and cut into two pieces. The dot-shaped molten patterns, with the distance of 100 µm between them, were formed on the surface of one of the pieces by using an Nd:YVO4 laser. The grains of the irradiated sample were significantly grown due to the laser-induced sintering. The modified surface appeared to have dense and compacted grains as a result of increasing interconnectivity among the superconducting grains. The critical current densities at 5 K in a field of 3 T were found to be 5.38 × 104 and 8.96 × 104 A cm?2 for the reference and the irradiated samples, respectively. The increment of critical current density for the irradiated sample is presumably connected with the changing of pinning mechanism after the laser irradiation. For the irradiated sample which showed a higher value of critical current density at 5 K under high fields, ?? pinning was obtained as a dominant pinning mechanism, while the normal point pinning was dominant for the reference one. These results point out that the superconducting properties of bulk MgB2 can be changed and improved via laser irradiation in a short time. © 2016, Springer Science+Business Media New York.en_US
dc.identifier.doi10.1007/s10948-016-3777-7
dc.identifier.endpage776
dc.identifier.issn1557-1939
dc.identifier.issue3
dc.identifier.scopus2-s2.0-84984890590en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage769
dc.identifier.urihttps://dx.doi.org/10.1007/s10948-016-3777-7
dc.identifier.urihttps://hdl.handle.net/20.500.12403/513
dc.identifier.volume30
dc.identifier.wosWOS:000395062600029en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSpringer New York LLC
dc.relation.ispartofJournal of Superconductivity and Novel Magnetismen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectCritical current density
dc.subjectLaser irradiation
dc.subjectMgB2
dc.subjectPinning force density
dc.subjectSuperconductivity
dc.subjectCritical current density (superconductivity)
dc.subjectCritical currents
dc.subjectCurrent density
dc.subjectLaser beam effects
dc.subjectSintering
dc.subjectSuperconductivity
dc.subjectInterconnectivity
dc.subjectIrradiated samples
dc.subjectMgB<sub>2</sub>
dc.subjectPinning force density
dc.subjectPinning mechanism
dc.subjectPinning properties
dc.subjectSuperconducting grains
dc.subjectSuperconducting properties
dc.subjectIrradiation
dc.subjectCritical current density
dc.subjectLaser irradiation
dc.subjectMgB2
dc.subjectPinning force density
dc.subjectSuperconductivity
dc.subjectCritical current density (superconductivity)
dc.subjectCritical currents
dc.subjectCurrent density
dc.subjectLaser beam effects
dc.subjectSintering
dc.subjectSuperconductivity
dc.subjectInterconnectivity
dc.subjectIrradiated samples
dc.subjectMgB<sub>2</sub>
dc.subjectPinning force density
dc.subjectPinning mechanism
dc.subjectPinning properties
dc.subjectSuperconducting grains
dc.subjectSuperconducting properties
dc.subjectIrradiation
dc.titleEnhanced Pinning Properties of Laser-Irradiated Bulk MgB2 Superconductorsen_US
dc.typeArticleen_US

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