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of 30
pro vyhledávání: '"Richard J Goff"'
Powder x-ray diffraction patterns of magnetite (Fe3O 4) have been recorded at 90 K, below the Verwey transition, at three wavelengths in the pre- to mid-edge region of the 7.1 keV Fe K absorption. Simultaneous fitting of these profiles has been used
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::38bf61ea9cdb44b2248f8d6926c56955
https://ora.ox.ac.uk/objects/uuid:1b58351a-7f3e-4db4-8667-a4e509244f97
https://ora.ox.ac.uk/objects/uuid:1b58351a-7f3e-4db4-8667-a4e509244f97
Autor:
Winfried Kockelmann, Finlay D. Morrison, Richard J. Goff, Julia E. Parker, Lewis J. Downie, Philip Lightfoot, Susan D. Forder
Publikováno v:
Journal of Solid State Chemistry. 190:52-60
We thank EPSRC for funding, STFC for providing neutron facilities and Diamond Light Source for provision of synchrotron facilities. We thank Dr Chiu Tang for assistance at Diamond and Dr A. Kusmartseva (University of Edinburgh) for assistance with th
Autor:
Farida H. Aidoudi, Russell E. Morris, Richard J. Goff, Alexandra M. Z. Slawin, David W. Aldous, Philip Lightfoot, J. Paul Attfield
Publikováno v:
Nature Chemistry. 3:801-806
Frustrated magnetic lattices offer the possibility of many exotic ground states that are of great fundamental importance. Of particular significance is the hunt for frustrated spin-1/2 networks as candidates for quantum spin liquids, which would have
Publikováno v:
Solid State Sciences. 13:953-958
The cryolite phase (NH4)3FeF6 has been studied using variable temperature X-ray powder diffraction, together with dielectric and magnetic measurements, in order to resolve its potential multiferroic properties. The X-ray data reveal a direct transiti
Autor:
Philip Lightfoot, Richard J. Goff
Publikováno v:
Journal of Solid State Chemistry. 182:2626-2631
The relaxor ferroelectric Pb 2 Bi 4 Ti 5 O 18 has been studied by Rietveld refinement of powder neutron diffraction data collected at temperatures of 100, 250 and 400 °C. Our refinements are compatible with the ‘average’ crystal structure of Pb
Autor:
Philip Lightfoot, Richard J. Goff, Finlay D. Morrison, Dean S. Keeble, Pam A. Thomas, Clemens Ritter
Publikováno v:
Chemistry of Materials. 21:1296-1302
The layered perovskite CsBiNb2O7 has been reinvestigated in the light of recent predictions of ferroelectric behavior. Variable temperature powder neutron diffraction experiments show that this material retains polar symmetry (space group P2(1)am) up
Autor:
Philip Lightfoot, Karen E. Johnston, Peter S. Berdonosov, V. A. Dolgikh, Dmitri O. Charkin, Richard J. Goff, Kevin S. Knight
Publikováno v:
Journal of Solid State Chemistry. 179:3437-3444
Several outstanding aspects of phase behaviour in the systems (Bi, Ln ) 2 WO 6 and (Bi, Ln ) 2 MoO 6 ( Ln =lanthanide) have been clarified. Detailed crystal structures, from Rietveld refinement of powder neutron diffraction data, are provided for Bi
Autor:
Philip Lightfoot, Finlay D. Morrison, Christopher M. Kavanagh, Richard J. Goff, Aziz Daoud-Aladine
The authors would like to thank the Royal Society for a University Research Fellowship (FDM), Engineering and Physical Sciences Research Council for a studentship (CMK), and the Science and Technology Facilities Council for access to neutron faciliti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::148d4d9a99a797ed4bd21ca45487d006
https://hdl.handle.net/10023/24846
https://hdl.handle.net/10023/24846
Autor:
Finlay D. Morrison, Richard J. Goff, Lewis J. Downie, Winfried Kockelmann, Philip Lightfoot, Julia E. Parker, Susan D. Forder
Publikováno v:
ChemInform. 43
The title compounds are characterized by powder neutron and X-ray diffraction, magnetic susceptibility and dielectric measurements, and 57Fe Moessbauer spectroscopy.
Publikováno v:
ChemInform. 42
The title compound is characterized by variable temperature powder XRD and dielectric and magnetic measurements.