Zobrazeno 1 - 10
of 367
pro vyhledávání: '"Ward, R C C"'
Autor:
Springell, R., Bright, E. Lawrence, Chaney, D. A., Harding, L. M., Bell, C., Ward, R. C. C., Lander, G. H.
Thin films based on silicon and transition-metal elements dominate the semiconducting industry and are ubiquitous in all modern devices. Films have also been produced in the rare-earth series of elements for both research and specialized applications
Externí odkaz:
http://arxiv.org/abs/2307.01018
Autor:
Springell, R., Ward, R. C. C., Bouchet, J., Chivall, J., Wermeille, D., Normile, P. S., Langridge, S., Zochowski, S. W., Lander, G. H.
We report x-ray synchrotron experiments on epitaxial films of uranium, deposited on niobium and tungsten seed layers. Despite similar lattice parameters for these refractory metals, the uranium epitaxial arrangements are different and the strains pro
Externí odkaz:
http://arxiv.org/abs/1404.1804
Autor:
Stenning, G. B. G., Buckingham, A. R., Bowden, G. J., Ward, R. C. C., van der Laan, G., Shelford, L. R., Maccherozzi, F., Dhesi, S. S., de Groot, P. A. J.
X-ray magnetic circular dichroism at the Er M4,5 edge is used to study the switching behavior of the hard ErFe2 layers in an epitaxial [ErFe2(70{\AA})/YFe2 (150{\AA})]{\times}25 exchange-spring superlattice. Magnetic hysteresis loops for the Er magne
Externí odkaz:
http://arxiv.org/abs/1102.5656
Autor:
Buckingham, A. R., Bowden, G. J., Wang, D., Stenning, G. B. G., Nandhakumar, I., Ward, R. C. C., de Groot, P. A. J.
Implanted 3.25 keV Ar+ ions have been used to modify the in-plane bulk anisotropy in thin films of epitaxially grown Laves phase YFe2. The magneto optical Kerr effect, vibrating sample magnetometry and computational modeling have been used to show th
Externí odkaz:
http://arxiv.org/abs/1009.1520
Epitaxially grown intermetallic RFe2 (R = Dy, Er, Y) thin films have been studied by point contact Andreev reflection. Spin polarization values were extracted by fitting normalized conductance curves for mechanical Nb/RFe2 point contacts, using a mod
Externí odkaz:
http://arxiv.org/abs/0809.3723
Autor:
Brown, S. D., Bouchenoire, L., Thompson, P., Springell, R., Mirone, A., Stirling, W. G., Beesley, A., Thomas, M. F., Ward, R. C. C., Wells, M., Langridge, S., Zochowski, S. W., Lander, G. H.
Recent calculations, concerning the magnetism of uranium in the U/Fe multilayer system have described the spatial dependence of the 5f polarization that might be expected. We have used the x-ray resonant magnetic reflectivity technique to obtain the
Externí odkaz:
http://arxiv.org/abs/0710.0176
Autor:
Springell, R, Zochowski, S W, Ward, R C C, Wells, M R, Brown, S D, Bouchenoire, L, Wilhelm, F, Langridge, S, Stirling, W G, Lander, G H
SQUID magnetometry and polarised neutron reflectivity measurements have been employed to characterise the magnetic properties of U/Fe, U/Co and U/Gd multilayers. The field dependence of the magnetisation was measured at 10K in magnetic fields from -7
Externí odkaz:
http://arxiv.org/abs/0704.3970
Autor:
Springell, R, Zochowski, S W, Ward, R C C, Wells, M R, Brown, S D, Bouchenoire, L, Wilhelm, F, Langridge, S, Stirling, W G, Lander, G H
This paper addresses the structural characterisation of a series of U/Fe, U/Co and U/Gd multilayers. X-ray reflectivity has been employed to investigate the layer thickness and roughness parameters along the growth direction and high-angle diffractio
Externí odkaz:
http://arxiv.org/abs/0704.3947
Autor:
Gordeev, S. N., Beaujour, J-M. L., Bowden, G. J., de Groot, P. A. J., Rainford, B. D., Ward, R. C. C., Wells, M. R ., Jansen, A. G. M.
Magnetization and magnetoresistance measurements are reported for antiferromagnetically coupled DyFe$_2$/YFe$_2$ multilayers in fields up to 23 T. We demonstrate that the formation of short exchange springs (~ 2 nm) in the magnetically soft YFe$_2$ l
Externí odkaz:
http://arxiv.org/abs/cond-mat/0103354
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