Zobrazeno 1 - 10
of 23
pro vyhledávání: '"P. G. Kealey"'
Publikováno v:
Physica B: Condensed Matter. 326:342-345
We have used a variety of microscopic techniques to reveal the structure and motion of flux line arrangements, when the flux lines in low Tc type II superconductors are caused to move by a transport current. Using small-angle neutron scattering by th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5211d90af6871635dd27ecbd308f2935
https://doi.org/10.1016/s0921-4526(02)01619-8
https://doi.org/10.1016/s0921-4526(02)01619-8
Autor:
Zhiqiang Mao, Andrew P. Mackenzie, E. M. Forgan, Robert Cubitt, D. McK. Paul, P. G. Kealey, R. Heeb, Daniel F. Agterberg, S. Akima, Stephen Lee, Robin Perry, T.M Riseman, Yoshiteru Maeno, L. M. Galvin
Publikováno v:
Physica C: Superconductivity. :1643-1646
Recent experimental results indicate that superconductivity in Sr2RuO4 is described by the p-wave E_u representation of the D_{4h} point group. Results on the vortex lattice structures for this representation are presented. The theoretical results ar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::602c7dae89f04da25344d4e85769f2f7
https://doi.org/10.1016/s0921-4534(00)01492-1
https://doi.org/10.1016/s0921-4534(00)01492-1
Autor:
Ch. Simon, Ch. Dewhurst, E. M. Forgan, Bernard Plaçais, S. T. Johnson, Stephen Lee, G. Lazard, Christophe Goupil, P. Mathieu, Robert Cubitt, P. G. Kealey, Y. Simon, Alain Pautrat
Publikováno v:
Physica C: Superconductivity. :999-1002
We report a detailed neutron diffraction study of both pinned and moving magnetic Flux Line Lattice (FLL) in NbTa and PbIn samples. In NbTa, the FLL presents a hexagonal lattice even in the absence of current, meanwhile PbIn presents a strongly dislo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::60f2172a4070236d76be9b2545d3e643
https://doi.org/10.1016/s0921-4534(00)00762-0
https://doi.org/10.1016/s0921-4534(00)00762-0
Autor:
S. H. Lloyd, C. Ager, Robert Cubitt, Feodor Y. Ogrin, E. M. Forgan, T.M Riseman, Christof M. Aegerter, G. Wirth, Stephen Lee, P. G. Kealey
Publikováno v:
Physica B: Condensed Matter. :355-359
μSR and small-angle neutron scattering (SANS) have been used to probe the vortex arrangement in single crystals of the high-Tc superconductor Bi2.15Sr1.85CaCu2O8+δ which have been irradiated with heavy ions to produce columnar defects. The influenc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3bf7bbab6dd6d1abda23cf35e0da790b
https://doi.org/10.1016/s0921-4526(00)00410-5
https://doi.org/10.1016/s0921-4526(00)00410-5
Autor:
Alexandre I. Rykov, T.M Riseman, Stephen Lee, S. J. Johnson, Feodor Y. Ogrin, Setsuko Tajima, I. M. Savić, P. G. Kealey, E. M. Forgan, S. H. Lloyd, Hugo Keller, C. Ager, Christof M. Aegerter, S. Romer
Publikováno v:
Physical Review B. 62:3528-3533
Muon-spin rotation $(\ensuremath{\mu}\mathrm{SR})$ and torque magnetometry have been used to probe the anisotropy of an untwinned single crystal of ${\mathrm{YBa}}_{2}{\mathrm{Cu}}_{3}{\mathrm{O}}_{7\ensuremath{-}\ensuremath{\delta}}.$ The absence of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ce2fa4c0dac677ab9590ee3ec643a5a
https://doi.org/10.1103/physrevb.62.3528
https://doi.org/10.1103/physrevb.62.3528
Autor:
D. McK. Paul, T.M Riseman, Zhiqiang Mao, Andrew P. Mackenzie, Yoshiteru Maeno, Daniel F. Agterberg, L. M. Galvin, Robert Cubitt, P. G. Kealey, E. M. Forgan, R. Heeb, Stephen Lee
Publikováno v:
Physical Review Letters. 84:6094-6097
We have measured the diffracted neutron scattering intensities from the square magnetic flux lattice in the perovskite superconductor ${\mathrm{Sr}}_{2}{\mathrm{RuO}}_{4}$, which is thought to exhibit $p$-wave pairing with a two-component order param
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c540179a43de7c51383d2d4f2265ebbb
https://doi.org/10.1103/physrevlett.84.6094
https://doi.org/10.1103/physrevlett.84.6094
Autor:
D. McK. Paul, P. Schleger, S. T. Johnson, P. G. Kealey, Alain Pautrat, Ch. Simon, Stephen Lee, T.M Riseman, C. Ager, Robert Cubitt, E. M. Forgan, Charles Dewhurst, S. H. Lloyd, Ch. Goupil, Christof M. Aegerter
Publikováno v:
Physica B: Condensed Matter. :752-755
Small-angle neutron scattering (SANS) is an extremely powerful probe of the vortex state in type II superconductors. The technique may be further enhanced by the use of polarised neutrons and the application of the neutron spin-echo method. We discus
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb4bcabdad70f93ae24b54b51243a45f
https://doi.org/10.1016/s0921-4526(99)01680-4
https://doi.org/10.1016/s0921-4526(99)01680-4
Autor:
Christof M. Aegerter, E. M. Forgan, D. McK. Paul, S. T. Johnson, T.M Riseman, Ch. Simon, Alain Pautrat, P. G. Kealey, Stephen Lee, P. Schleger, Robert Cubitt
Publikováno v:
Physica B: Condensed Matter. :115-121
There are several ways of investigating#ux lines with polarised neutrons. We shall describe our recent work on IN15 at ILL, investigating spatially varying "elds perpendicular to the #uxoid axes, which are present with tilted "elds in anisotropic sup
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fbb60e8600aba18b869074e649c0b636
https://doi.org/10.1016/s0921-4526(99)00046-0
https://doi.org/10.1016/s0921-4526(99)00046-0
Autor:
Setsuko Tajima, S. H. Lloyd, Christof M. Aegerter, Alexandre I. Rykov, Stephen Lee, S. T. Johnson, P. G. Kealey, E. M. Forgan, C. Ager, D. McK. Paul, Robert Cubitt
Publikováno v:
Physical Review Letters. 82:2792-2795
A small angle neutron scattering study of the flux-line lattice in a large untwinned single crystal of ${\mathrm{YBa}}_{2}{\mathrm{Cu}}_{3}{\mathrm{O}}_{7\ensuremath{-}\ensuremath{\delta}}$ is presented. In fields parallel to the $c$ axis, diffractio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c4bd224871f901f1f31900d920be3e6f
https://doi.org/10.1103/physrevlett.82.2792
https://doi.org/10.1103/physrevlett.82.2792
Autor:
T. Akima, D. McK. Paul, Zhiqiang Mao, Yoshiteru Maeno, Andrew P. Mackenzie, T.M Riseman, L. M. Galvin, P. G. Kealey, Stephen Lee, A. W. Tyler, Robert Cubitt, C. Ager, Christof M. Aegerter, E. M. Forgan
Publikováno v:
Nature. 396:242-245
The phenomenon of superconductivity continues to be of considerable scientific and practical interest. Underlying this phenomenon is the formation of electron pairs, which in conventional superconductors do not rotate about their centre of mass (‘s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::df51971b7396d9ce54db98ed3f8913b3
https://doi.org/10.1038/24335
https://doi.org/10.1038/24335