Title A new way of synthesis and characterization of superconducting oxyfluoride $Sr_{2}Cu(O,F)_{4+\delta}$ A new way of synthesis and characterization of superconducting oxyfluoride $Sr_{2}Cu(O,F)_{4+\delta}$ Author Ardashnikova, E.I. Lubarsky, S.V. Denisenko, D.I. Shpanchenko, R.V. Antipov, E.V. Van Tendeloo, G. Faculty/Department Faculty of Sciences. Physics Publication type article Publication 1995 Amsterdam , 1995 Subject Physics Source (journal) Physica: C: superconductivity. - Amsterdam Volume/pages 253(1995) :3/4 , p. 259-265 ISSN 0921-4534 ISI A1995TE08400007 Carrier E Target language English (eng) Affiliation University of Antwerp Abstract Superconducting Cu mixed oxyfluoride, Sr,Cu(O, F)(4+delta), was Obtained via fluorination of Sr2CuO3 by XeF2 in the 100-250 degrees C temperature range in a closed Ni container. The prepared samples exhibited a lower T-c in comparison with earlier reported values. Different samples in the Sr-Cu-O-F system were prepared by a solid-state reaction at 220-400 degrees C, but no formation of the oxyfluoride was detected even with an addition of xenon difluoride. These data allow one to draw conclusions on the metastability of the oxyfluoride under the conditions used, Electron microscopy and X-ray powder diffraction studies revealed large amounts of badly crystallized SrF2; this could be a reason for the small superconducting volume fraction as well as for the inhomogeneous distribution of the anions. E-info http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1995TE08400007&DestLinkType=RelatedRecords&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1995TE08400007&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1995TE08400007&DestLinkType=CitingArticles&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848 Handle