Zobrazeno 1 - 10
of 38
pro vyhledávání: '"A.V. Volkozub"'
Autor:
René-Louis Flukiger, G. K. Perkins, Giovanni Grasso, A.D. Caplin, Yibing Huang, A.V. Volkozub, Frank Marti, Marc Dhalle, P. Buscemi, J. Everett
Publikováno v:
IEEE Transactions on Appiled Superconductivity. 9:2147-2150
Filament isolation is an extremely important factor in multi-filament conductors. However, filament-bridging superconducting intergrowths have often been observed. We show from magnetisation, transport and Hall probe experiments on a range of BSCCO-2
Autor:
Yibing Huang, René-Louis Flukiger, Frank Marti, G. K. Perkins, A.D. Caplin, A.V. Volkozub, Albino Polcari, J. Everett, Marc Dhalle
Publikováno v:
Physica C: Superconductivity and Its Applications, Vol. 310, No 1-4 (1998) pp. 202-207
Filament isolation is an extremely important factor in multi-filamentary conductors, and attempts have been made to achieve this by incorporating a resistive oxide sheath around individual filaments. However, filament-bridging intergrowths have been
Autor:
A.D. Caplin, René-Louis Flukiger, Yibing Huang, H. Eckelmann, Wilfried Goldacker, A.V. Volkozub, M. Quilitz, Giovanni Grasso
Publikováno v:
Physica C: Superconductivity and Its Applications, Vol. 310, No 1-4 (1998) pp. 159-162
The modelling of both critical and remanent states (i.e., the current density and field distributions) in periodic arrays of flat superconducting strips is important for calculating the AC losses in multifilamentary tapes made for power applications.
Autor:
G.K. Perkins, D. Hyland, J.C. Moore, A.D. Caplin, M.D. Johnston, S. Fox, A.V. Volkozub, J. Everett, Crm Grovenor
Publikováno v:
IEEE Transactions on Appiled Superconductivity. 7:1965-1968
The key factors that make the thallium-based 1223 phase conductors attractive candidates for high field applications are a high transition temperature (similar to 115 K), and an irreversibility line comparable to YBa2Cu3O7, However, a third important
Autor:
S. Pinfold, A.V. Volkozub, Robert Gagnon, Sergey N. Gordeev, R. M. Langan, M. Oussena, Louis Taillefer, P.A.J. de Groot
Publikováno v:
Journal of Low Temperature Physics. 105:1147-1152
Magnetotransport measurements on a clean, untwinned YBa2Cu3O7−δ single crystal show that the vortex dynamics at temperatures just below the vortex lattice melting transition are highly dependent on the type of modulation of the probing current. Wh
Autor:
A.J.S. Chowdhury, A.V. Volkozub, J.W. Hodby, F. R. Wondre, P.A.J. de Groot, B.M. Wanklyn, N.R. Charnley
Publikováno v:
Journal of Crystal Growth. 169:405-408
We report the growth of undoped and Y- and Gd-doped Bi 2 Sr 2 CaCu 2 O 8 (BSCCO 2212) crystals by the flux method in flat dish-shaped crucibles where the growth mechanism appears to be different from that observed in standard high form or conical cru
Publikováno v:
Journal of Crystal Growth. 166:863-866
We describe the growth of Y-doped and undoped Bi 2 Sr 2 CaCu 2 O y (BSCCO 2212) crystals by a repeated melting and recrystallisation technique in platinum crucibles. The conditions for the growth of high-quality, chemically pure (undoped) and highly
Publikováno v:
Physica C: Superconductivity. 229:193-196
The discovery of superconductivity at 12 K in the single-phase YNi2B2C compound and at 23 K in the multiphase YPd5B3C0.2 compound has renewed the interest in the field of intermetallic superconductors. We have made an extensive study of superconducti
Publikováno v:
Physica C: Superconductivity. 225:388-396
We report the growth of pure, high-quality Bi2Sr2CaCu2Ox (BSCCO 2212) crystals, grown by a novel flux method in Pt crucibles. The growth process involves repeated remelting and recrystallisation of the same melt. The crystals appear to be chemically
Autor:
D.M. Ogborne, Geetha Balakrishnan, P.C. Lanchester, de Groot Pa, A.V. Volkozub, Don McK. Paul, S. Porter, M. Oussena, Mark T. Weller
Publikováno v:
Physical Review B. 48:10575-10578
We have compared the pinning and creep in two identically shaped single crystals, Tl 2 Ba 2 CaCu 2 O 8 (Tl 2:2:1:2) and Bi 2 Sr 2 CaCu 2 O 8 (Bi 2:2:1:2) using magnetometry. The critical current density, J c , deduced from the M-H hysteresis loops is