Superconducting and microstructural properties of two types of MgB/sub 2/ films prepared by pulsed laser deposition

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dc.contributor.authorZhao, Yen_AU
dc.contributor.authorIonescu, Men_AU
dc.contributor.authorRoussel, Men_AU
dc.contributor.authorPan, AVen_AU
dc.contributor.authorHorvat, Jen_AU
dc.contributor.authorDou, SXen_AU
dc.date.accessioned2025-01-14T00:52:16Zen_AU
dc.date.available2025-01-14T00:52:16Zen_AU
dc.date.issued2005-06en_AU
dc.date.statistics2025-01-14en_AU
dc.description.abstractSignificant differences in superconducting and microstructural properties between two types of MgB2 films prepared by pulsed laser deposition were determined. A very high Hc2 - T slope of 1.1 T/K was achieved in the in situ film. The Jc - H curves of the in situ film also show a much weaker field dependence than that of the ex situ film. The magneto-optical (MO) images show that at 4 K the flux penetrates the in situ MgB2 film through random paths, while for the ex situ film, the flux penetration pattern is mostly repeatable, indicating a defect-controlled flux penetration. Microstructural study (transmission electron microscopy and atomic force microscopy) revealed a relatively big grain size in the ex situ film. The correlation between the superconducting properties, microstructure and preparation conditions is discussed with regard to the two types of films. © 2005 IEEE.en_AU
dc.identifier.citationYue, Z., Ionescu, M., Roussel, M., Pan, A. V., Horvat, J., & Dou, S. X. (2005). Superconducting and microstructural properties of two types of MgB/sub 2/ films prepared by pulsed laser deposition. Paper presented to the Applied Superconductivity Conference: Harnessing the Magic (ASC 2004) 3-8 October 2004. Jacksonville, FL, United Stated. In IEEE Transactions on Applied Superconductivity, 15(2), 3261-3264. doi:10.1109/TASC.2005.848847en_AU
dc.identifier.conferenceenddate2004-10en_AU
dc.identifier.conferencenameApplied Superconductivity Conference: Harnessing the Magic (ASC 2004)en_AU
dc.identifier.conferenceplaceJacksonville, FL, United Statesen_AU
dc.identifier.conferencestartdate2004-10-03en_AU
dc.identifier.issn1051-8223en_AU
dc.identifier.issue2en_AU
dc.identifier.journaltitleIEEE Transactions on Applied Superconductivityen_AU
dc.identifier.pagination3261-3264en_AU
dc.identifier.urihttps://doi.org/10.1109/tasc.2005.848847en_AU
dc.identifier.urihttps://apo.ansto.gov.au/handle/10238/15939en_AU
dc.identifier.volume15en_AU
dc.languageEnglishen_AU
dc.language.isoenen_AU
dc.publisherInstitute of Electrical and Electronics Engineersen_AU
dc.subjectSuperconductivityen_AU
dc.subjectFilmsen_AU
dc.subjectLasersen_AU
dc.subjectTransmission electron microscopyen_AU
dc.subjectGrain Sizeen_AU
dc.subjectMicrostructureen_AU
dc.subjectAnnealingen_AU
dc.subjectTemperature rangeen_AU
dc.subjectScatteringen_AU
dc.titleSuperconducting and microstructural properties of two types of MgB/sub 2/ films prepared by pulsed laser depositionen_AU
dc.typeConference Paperen_AU
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