Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Donna C. Arnold"'
Autor:
Rebecca Grethe, Kevin J.W. Etherdo-Sibley, Chiu Tang, Sarah Day, Donna C. Arnold, Eleanor Schofield
Marine archaeological artefacts contain unexpected compounds due to prolonged exposure to the sea. These can remain dormant and embedded within materials until a change in their surrounding environment, such as exposure to oxygen, prompts a transform
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b74a13aba7aee7a5c2fba6a260137afb
Autor:
Christopher J. Ridley, Donna C. Arnold, Laura J. Vera Stimpson, Kevin J. W. Etherdo-Sibley, Craig L. Bull
Publikováno v:
Materials Advances. 1:1841-1848
We have performed high–pressure neutron diffraction studies on the layered oxide, Ca2Mn3O8. Studies up to approximately 6 GPa at temperatures of 120 and 290 K demonstrate that there are no structural phase transitions within this pressure range. Fi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2c01678d77d15a0f000368eb5f1fd2fb
https://doi.org/10.1039/d0ma00464b
https://doi.org/10.1039/d0ma00464b
Autor:
Laura J. Vera Stimpson, Marek Jura, Gavin B. G. Stenning, Efrain E. Rodriquez, Donna C. Arnold, Craig M. Brown
Publikováno v:
Journal of Materials Chemistry C. 6:4541-4548
We report a systematic X-ray and powder neutron diffraction study of the geometrically frustrated material, Ca2Mn3O8. Ca2Mn3O8 exhibits a ‘bow-tie’ like connectivity of Mn4+ with Ca2+ occupying octahedral sites between MnO6 layers. Magnetic refin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3c9fb9cabe1e11ce53c63552168e5a36
https://doi.org/10.1039/c7tc05187e
https://doi.org/10.1039/c7tc05187e
Autor:
Steven McWilliams, Connor D. Flynn, Andreas Undisz, Donna C. Arnold, Jennifer McWilliams, Ruri Agung Wahyuono, Markus Rettenmayr, Anna Ignaszak
Publikováno v:
Nanomaterials
Volume 9
Issue 12
Volume 9
Issue 12
Cuprous oxide (Cu2O) was synthesized for the first time via an open bipolar electrochemistry (BPE) approach and characterized in parallel with the commercially available material. As compared to the reference, Cu2O formed through a BPE reaction demon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::552b95c28d5e252cebca1032ab32589b
Autor:
Anthony E. Phillips, Martin T. Dove, David A. Keen, Matthew G. Tucker, Juan Du, Donna C. Arnold
Publikováno v:
Physical Review B. 100
We report a study of the atomic structure of the multiferroic material bismuth ferrite \(BiFeO_3\) using neutron total scattering measurements coupled with analysis using the Reverse Monte Carlo method. We have examined average neighboring interatomi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::74a62b05a08bbd7db7b9db7c57632f0b
https://doi.org/10.1103/physrevb.100.104111
https://doi.org/10.1103/physrevb.100.104111
Autor:
Laura J. Vera Stimpson, Donna C. Arnold, Emma E. McCabe, Alexandra S. Gibbs, Gavin B. G. Stenning, Marek Jura, Finlay D. Morrison, Amit Mahajan, Jason A. McNulty
Publikováno v:
Journal of Alloys and Compounds. 843:155633
The authors acknowledge the ISIS Neutron and Muon User Source for access to beamtime on HRPD (RB1520166 and RB1720182) [39,40]. We are also thankful for access to the instrumentation in the ISIS Materials Characterisation laboratory. We are grateful
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::12ff0ae9de6ca3ab4ccc4a8c84b45679
https://doi.org/10.1016/j.jallcom.2020.155633
https://doi.org/10.1016/j.jallcom.2020.155633
Publikováno v:
Physical Review B. 98
We report the synthesis and comprehensive ac and dc susceptibility measurements of KxRu4−yNiyO8 hollandite. The value of the relative frequency shift, δTf , has been determined as 0.025 which is within the range expected for spin-glass systems (0.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fdb9619109734d314690aa64743172a0
https://doi.org/10.1103/physrevb.98.174429
https://doi.org/10.1103/physrevb.98.174429
Autor:
M. El Marssi, Carine Davoisne, Houssny Bouyanfif, F. Le Marrec, Loic Dupont, Jérôme Wolfman, Donna C. Arnold, B. Carcan
Publikováno v:
Journal of Applied Physics
Journal of Applied Physics, American Institute of Physics, 2018, 124 (4), pp.044105. ⟨10.1063/1.5037076⟩
Journal of Applied Physics, American Institute of Physics, 2018, 124 (4), pp.044105. ⟨10.1063/1.5037076⟩
Artificial (BiFeO3)0.5Λ/(LaFeO3)0.5Λ superlattices have been grown by pulsed laser deposition. The periodicity Λ was varied from 150 A to 25 A and the relative ratio between BiFeO3 (BFO) and LaFeO3 (LFO) is kept constant in each period. X-ray diff
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::86e618da9b2176136af865a3077ebf46
https://hal-univ-tours.archives-ouvertes.fr/hal-02014832
https://hal-univ-tours.archives-ouvertes.fr/hal-02014832
Autor:
Donna C. Arnold
Publikováno v:
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 62:62-82
Bismuth ferrite suffers from high leakage currents and the presence of a complex incommensurate spin cycloidal magnetic ordering, which has limited its commercial viability and has led researchers to investigate the functionality of doped BiFeO3 cera
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f7dded9969bbc335d2c7a29d5283fba7
https://doi.org/10.1109/tuffc.2014.006668
https://doi.org/10.1109/tuffc.2014.006668
Autor:
Donna C. Arnold, Marek Jura, Giannantonio Cibin, Laura J. Vera Stimpson, Gavin B. G. Stenning, Silvia Ramos, Stephen A. Parry
Ca2Mn3O8 exhibits a complex layered structure comprised of Mn3O84- layers separated by Ca2+ ions. In contrast with the more traditional triangular delafossite layered materials the Mn3O84- layers additionally exhibit an ordered vacancy, which forms a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6985fd8dbdf99a91e689cc9124f3fa0c
https://kar.kent.ac.uk/64166/1/Arnold_Ca2Mn3O8-morph_KAR.pdf
https://kar.kent.ac.uk/64166/1/Arnold_Ca2Mn3O8-morph_KAR.pdf