Zobrazeno 1 - 10
of 77
pro vyhledávání: '"Ian Gameson"'
Autor:
Peter P. Edwards, M. Slaski, Peter R. Slater, M. G. Francesconi, Jason P. Hodges, Malek Al-Mamouri, C. D Greaves, Ian Gameson
We report here a simple and efficient synthetic route to high-temperature superconducting oxyfluorides. Solid phase fluorination of Sr 2 CuO 3 with NH 4 F at relatively low temperatures produces superconducting Sr 2 CuO 2 F 2+δ ; this simple prepara
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::80ce505fda42db5bbd5c78f444265b04
https://doi.org/10.1016/0921-4534(94)02345-x
https://doi.org/10.1016/0921-4534(94)02345-x
We have investigated the thermal decomposition of the mercurocuprate phases HgBa2 Ca2 Cu3 O8+ , HgBa2 CuO4+ and (Hg0.8 Re0.2 )Sr2 CuO4+ . In each compound, decomposition is initiated by the breaking of weak Hg-O bonds, but is driven to completion by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d681e3ba02b645333d54bfca91d68b83
https://ora.ox.ac.uk/objects/uuid:aeb3010d-e4f1-4790-8de4-d648ab27aa07
https://ora.ox.ac.uk/objects/uuid:aeb3010d-e4f1-4790-8de4-d648ab27aa07
The highest transition temperature superconductors are found within the complex homologous series HgBa 2 Ca n −1 Cu n O 2 n +2+ δ ( n =1–7), with the third member, HgBa 2 Ca 2 Cu 3 O 8+ δ possessing the record-high transition temperature ( T c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9efc994df00880f3fb3828b222b31f2d
https://ora.ox.ac.uk/objects/uuid:b2a8cfd3-8edb-4e97-84a9-9ab910ca9734
https://ora.ox.ac.uk/objects/uuid:b2a8cfd3-8edb-4e97-84a9-9ab910ca9734
Autor:
J.W. Hodby, J. R. Cooper, Peter P. Edwards, Christos Panagopoulos, W. Schmidbauer, Tao Xiang, G. B. Peacock, Ian Gameson
A systematic study of the anisotropic magnetic penetration depth λ for several high-Tc superconductors is presented. It is shown that the existence of the linear term in the low temperature in-plane penetration depth is independent of the number of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c92d22a349bbd480c843f9838c5cbf31
https://doi.org/10.1016/s0921-4534(97)00244-x
https://doi.org/10.1016/s0921-4534(97)00244-x
Autor:
David Book, Malek Al-Mamouri, Peter P. Edwards, I. Rex Harris, James W. Prendergast, Paul A. Anderson, Allan Walton, J.D. Speight, Simon R. Johnson, Ian Gameson
We report the discovery of a new, chemical route for ‘activating’ the hydrogen store MgH2, that results in highly effective hydrogen uptake/release characteristics, comparable to those obtained from mechanically-milled material.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0d478ca7ab10cb3134bd1302b0aeeab3
https://doi.org/10.1039/b503085d
https://doi.org/10.1039/b503085d
Autor:
Ian Gameson, David Book, Peter P. Edwards, Malek Al-Mamouri, Henrietta W. Langmi, Allan Walton, J.D. Speight, I.R. Harris, Paul A. Anderson, Simon R. Johnson
We have investigated the use of zeolites as potential hydrogen storage materials. The zeolites A, X, Y and RHO, which encompass a range of different pore geometries and compositions, were synthesised by hydrothermal methods, and different cation-exch
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc8dc3647f1594da2b6525ecd5b3fc3e
https://doi.org/10.1016/s0925-8388(03)00368-2
https://doi.org/10.1016/s0925-8388(03)00368-2
Autor:
Stephen J. Blundell, Kay E. Gibbons, Amalia I. Mihut, Peter P. Edwards, Martin O. Jones, Yuzuru Miyazaki, Adrian Porch, Neil C. Hyatt, Ian Gameson
Publikováno v:
Scopus-Elsevier
Colossal magnetoresistance manganites have been synthesised by the microwave dielectric heating of metal nitrates, which act both as effective microwave susceptors, and a ready source of oxidizing NO2 to induce mixed valency.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::86d59fb507768fd842ce0c77c272b4cb
https://doi.org/10.1039/a907677h
https://doi.org/10.1039/a907677h
Autor:
Paul A. Anderson, Michael J. Edmondson, P. Jill Meadows, Simon R. Johnson, Wuzong Zhou, Ian Gameson, Peter P. Edwards
We report the controlled synthesis of bare, single-crystal copper nanowires, of high aspect ratio, through electron beam irradiation of copper-containing zeolite X. The precursor material was specially prepared from as-synthesized sodium zeolite X in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e11a03bc72db193c59991178cb1f1d83
https://ora.ox.ac.uk/objects/uuid:af003dbd-0987-401a-a8c9-f7fbc3773260
https://ora.ox.ac.uk/objects/uuid:af003dbd-0987-401a-a8c9-f7fbc3773260
Publikováno v:
Scopus-Elsevier
A solid solution of the quasi-one-dimensional cuprate, (Ca1-xYx)0.82CuO2 with 0 ≤ x ≤ 0.435, has been successfully synthesized at room pressure. Upon yttrium doping (decreasing hole concentration), the formal Cu valence of the solid solution chan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e68ef2cda788be94ccfbeb62739cbf78
https://ora.ox.ac.uk/objects/uuid:6d2b79d7-9a3c-4c6f-88bd-1712e4b77289
https://ora.ox.ac.uk/objects/uuid:6d2b79d7-9a3c-4c6f-88bd-1712e4b77289