Zobrazeno 1 - 10
of 237
pro vyhledávání: '"D. Dew-Hughes"'
The magnetization of different samples of BiSCCO superconductor have been studied at low fields and the hysteresis loops obtained compared with a numerical simulation. The numerical simulation is used to provide details of the field dependence of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0ff039b8c9caf6a7105ef3c597135d0e
https://ora.ox.ac.uk/objects/uuid:b00bfb88-759e-4ad4-8e91-f3124d8bf4a8
https://ora.ox.ac.uk/objects/uuid:b00bfb88-759e-4ad4-8e91-f3124d8bf4a8
Autor:
C.R.M. Grovenor, C.R.J. Hole, M. van der Burgt, D. Dew-Hughes, D.T Ryan, H. Jones, M.J. Goringe, C.M. Davies
With a view to the long term exploitation of the high upper critical fields of high temperature and Chevrel phase superconductors and their use in very high field superconducting magnets, we are making measurements of critical currents on practical v
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4accce7fa079a419bd3cf0ff17ae654f
https://ora.ox.ac.uk/objects/uuid:b3c6fcdf-a9aa-4744-9724-015e252bcc9e
https://ora.ox.ac.uk/objects/uuid:b3c6fcdf-a9aa-4744-9724-015e252bcc9e
Autor:
D. Dew-Hughes, Malcolm McCulloch
Publikováno v:
Scopus-Elsevier
There is a superconducting equivalent for most types of conventional ac machine. This paper describes six topologies of machine, viz. hysteresis, pre-fluxed, written pole, cage, synchronous reluctance, composite and induced synchronous machines. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::54e8789afc444a35e0ec96f239e6f1ac
https://ora.ox.ac.uk/objects/uuid:49e56576-2f6d-40d5-917e-7d9ddd397d60
https://ora.ox.ac.uk/objects/uuid:49e56576-2f6d-40d5-917e-7d9ddd397d60
Autor:
D.M.C. Hyland, Paul A. Warburton, Mark G. Blamire, W.E. Booij, Reinhold Kleiner, Gavin Burnell, OS Chana, AR Kuzhakhmetov, RJ Kinsey, Crm Grovenor, D. Dew-Hughes, Peter E. Müller
We have performed transport measurements on bridges patterned in misaligned thin films of the superconductor Tl2Ba2CaCu2O8. There is a c-axis component of current flow along the bridge, giving rise to hysteretic Josephson-like current-voltage curves.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d218ce2be498898111613311bd900ba6
https://doi.org/10.1063/1.126720
https://doi.org/10.1063/1.126720
Tl2Ba2Ca1Cu2Ox thin films with excellent alignment have been grown on CeO2 buffered R-plane sapphire using an ex situ anneal step in argon atmospheres at temperatures of 720-740°C. With this low-temperature process we have overcome the serious probl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::94b7b020f53bb1b34e785cc24688a074
https://doi.org/10.1063/1.118093
https://doi.org/10.1063/1.118093
Autor:
Marcel Ausloos, W Gawalek, Xavier Obradors, L Rodrigues, Xavier Granados, Elena Bartolomé, Malcolm McCulloch, A.M. Campbell, D Dew Hughes, Rudi Cloots, M Tornes, Tim Coombs
Publikováno v:
Journal of Physics: Conference Series. 43:788-791
In this work we report on the magnetic behavior of the heterostructures formed by bulk based YBCO rings and ferromagnetic yoke. The magnetization cycle has been performed by an In-Field Hall Mapping technique. A video-like recording of the magnetizat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c6211df6c6ad31e4a548974e1282731
https://doi.org/10.1088/1742-6596/43/1/192
https://doi.org/10.1088/1742-6596/43/1/192
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 51:33-40
Formulas for calculating the magnetic-field dependence of the resonance frequency and the quality factor of HTS microstrip (MS) and coplanar-waveguide resonators with a tangentially magnetized ferrite film component were obtained within the framework
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::285450dad47b424031e821e90dc6eef6
https://doi.org/10.1109/tmtt.2002.806944
https://doi.org/10.1109/tmtt.2002.806944
Preparation of YBCO resonators and their characterization in combination with the ferrite components
Publikováno v:
Vacuum. 69:437-440
Superconducting YBCO films on LaAlO3 substrate were prepared for microwave applications. Microstrip resonators from these films were also developed. The surface resistance of the films was evaluated using the parallel plate resonator technique. The c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f94db3717d7d5b1d42eedf6deee64aa0
https://doi.org/10.1016/s0042-207x(02)00371-8
https://doi.org/10.1016/s0042-207x(02)00371-8
Autor:
D. Dew-Hughes
Publikováno v:
Low Temperature Physics. 27:713-722
The most important practical characteristic of a superconductor is its critical current density. This article traces the history, both of the experimental discoveries and of the development of the theoretical ideas that have lead to the understanding
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a9c343ee37cd309b89f1c3914b7e8a5c
https://doi.org/10.1063/1.1401180
https://doi.org/10.1063/1.1401180
Autor:
Jeffrey W. Lynn, V. I. Gatalskaya, S. N. Barilo, S. V. Shiryaev, M. Baran, H. Szymczak, D. Dew-Hughes, R. Szymczak
Publikováno v:
Physical Review B. 58:12355-12367
Reversible magnetization and hysteresis loops have been studied over wide ranges of magnetic field and temperature for single crystals of ${\mathrm{Ba}}_{1\ensuremath{-}x}{\mathrm{K}}_{x}{\mathrm{BiO}}_{3+y}(x=0.34,$ 0.37, 0.41, and 0.46). The main g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cb9905851601685382ef02dc31d86915
https://doi.org/10.1103/physrevb.58.12355
https://doi.org/10.1103/physrevb.58.12355