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CMP
Credit: Jack Hobhouse

Roger Ward

Retiree

Sub department

  • Condensed Matter Physics
Roger.Ward@physics.ox.ac.uk
Telephone: 01865 (2)72271,01865 (2)72355
Clarendon Laboratory, room 164
  • About
  • Publications

Growth and characterization of tantalum- and niobium-doped KTP

Proceedings of SPIE--the International Society for Optical Engineering SPIE, the international society for optics and photonics 3928 (2000) 77-85

Authors:

Keith B Hutton, Roger CC Ward, Cameron F Rae, Malcolm H Dunn, Pamela A Thomas, Chris Eaton
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Anomalous magnetic ordering in DyxPr1−x alloys

Physica B Condensed Matter Elsevier 276 (2000) 698-699

Authors:

PS Clegg, RA Cowley, JP Goff, DF McMorrow, M Sawicki, RCC Ward, MR Wells
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Diffuse magnetic scattering from DHCP HoxCe1−x alloys

Physica B Condensed Matter Elsevier 276 (2000) 696-697

Authors:

JP Goff, RS Sarthour, DF McMorrow, F Yakhou, A Vigliante, D Gibbs, RCC Ward, MR Wells
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Misfit dislocations of epitaxial (110) niobium‖ (112̄0) sapphire interfaces grown by molecular beam epitaxy

Thin Solid Films Elsevier 358:1-2 (2000) 94-98

Authors:

EJ Grier, ML Jenkins, AK Petford-Long, RCC Ward, MR Wells

Abstract:

High resolution electron microscopy, HREM, of (110)Nb‖(112̄0)Al2O3 interfaces grown by molecular beam epitaxy, MBE, has confirmed that the interface is semicoherent for the films investigated, and that for this orientation misfit dislocations occur at the interface both with and without stand-off from the interface. The dislocation networks have been identified by conventional transmission electron microscopy, CTEM, to be composed of misfit dislocations with a Burgers vector of 1/2〈111〉, which corresponds to the Burgers vector of bulk dislocations in Nb.
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The magnetic structures of holmium-yttrium superlattices in an applied magnetic field

Journal of Physics Condensed Matter IOP Publishing 11:34 (1999) 6529

Authors:

C de la Fuente, RA Cowley, JP Goff, RCC Ward, MR Wells, DF McMorrow
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