National University of Lesotho
Institutional
Repository (NULIR)
Library and
Information Services

Study of microstructural changes in MgB2 thin film superconductors irradiated with 200 MeV 107Ag ions

Show simple item record

dc.contributor.author Narayan, Himanshu
dc.contributor.author Gupta, Anurag
dc.contributor.author Narlikar, A. V.
dc.contributor.author Sood, K. N.
dc.contributor.author Kishore, R.
dc.date.accessioned 2016-12-08T16:16:17Z
dc.date.available 2016-12-08T16:16:17Z
dc.date.issued 2004-06-18
dc.identifier.issn 1361-6668 (e)
dc.identifier.issn 0953-2048 (p)
dc.identifier.uri http://dx.doi.org/10.1088/issn.0953-2048
dc.identifier.uri http://repository.tml.nul.ls/handle/123456789/1143
dc.description.abstract MgB2 superconductor thin films, prepared by pulsed laser deposition (PLD) and electron beam evaporation (EBE), have been investigated by scanning electron microscopy (SEM) before and after 200 MeV 107Ag ion irradiation. The severe degradation of superconducting properties in irradiated PLD film and the absence of the same in EBE film correlates with the observed changes in their microstructures. The micrographs of the PLD film show an overall smoothing, flow pattern and reduction in size of the bigger agglomerates after irradiation. On the other hand, the microstructure of the EBE film does not show any significant change after irradiation. The flow pattern observed in the PLD film can be understood on the basis of the viscoelastic model for irradiation induced shear flow in amorphous solids. The observed degradation of the PLD film may thus be attributed primarily to its disordered nature under irradiation, whereas the radiation hardness of the EBE film may be due to its higher crystallinity. en_ZA
dc.language.iso en en_ZA
dc.publisher IOP Publishing Ltd en_ZA
dc.rights © 2004 IOP Publishing Ltd en_ZA
dc.source Superconductor Science and Technology, Volume 17, Number 8 en_ZA
dc.title Study of microstructural changes in MgB2 thin film superconductors irradiated with 200 MeV 107Ag ions en_ZA
dc.type Article en_ZA


Files in this item

This item appears in the following Collection(s)

Show simple item record

Search NULIR


Browse

My Account

Statistics