Zobrazeno 1 - 10
of 193
pro vyhledávání: '"EVETTS, J. E."'
Publikováno v:
Boletín de la Sociedad Española de Cerámica y Vidrio, Vol 38, Iss 6, Pp 658-661 (1999)
This work presents a study of the processes that give rise to the Direct Current Zoning effect. This effect consists in the formation of a hot zone in a superconducting rod when a potential difference is applied to it. The superconducting material us
Externí odkaz:
https://doaj.org/article/8726d02d49a7472c8b301de33be92c8d
Publikováno v:
PHYSICAL REVIEW B 70, 214508 (2004)
Most measurements of critical current densities in YBa$_2$Cu$_3$O$_{7-\delta}$ thin films to date have been performed on films where the \textit{c}-axis is grown normal to the film surface. With such films, the analysis of the dependence of $j_c$ on
Externí odkaz:
http://arxiv.org/abs/cond-mat/0406620
Publikováno v:
Supercond. Sci. Technol. 17 (2004) 657-662
We have developed a computer model for the simulation of resistive superconducting fault current limiters in three dimensions. The program calculates the electromagnetic and thermal response of a superconductor to a time-dependent overload voltage, w
Externí odkaz:
http://arxiv.org/abs/cond-mat/0312190
Autor:
Ransley, J. H. T., Mennema, S. H., Sandeman, K. G., Burnell, G., Kye, J. I., Oh, B., Tarte, E. J., Evetts, J. E., Blamire, M. G.
Publikováno v:
Applied Physics Letters, 84, 4089 (2004).
Using an optimized bridge geometry we have been able to make accurate measurements of the properties of YBa2Cu3O7-delta grain boundaries above Tc. The results show a strong dependence of the change of resistance with temperature on grain boundary ang
Externí odkaz:
http://arxiv.org/abs/cond-mat/0311386
Publikováno v:
Appl. Phys. Lett. (2003), 83 (24) pg 4999-5001.
The high $T_{c}$ cuprate superconductors are noted for their anisotropic layered structure, certain of these materials indeed tend toward the limit of a Lawrence-Doniach superconductor. However, YBa$_2$Cu$_3$O$_{7-\delta}$ has a smaller anisotropy th
Externí odkaz:
http://arxiv.org/abs/cond-mat/0308246
Publikováno v:
Durrell et al, Physical Review Letters, 90 (24): 247006 (2003)
Transport critical current measurements have been performed on 5 degree [001]-tilt thin film YBa2Cu3O7-delta single grain boundaries with magnetic field rotated in the plane of the film, phi. The variation of the critical current has been determined
Externí odkaz:
http://arxiv.org/abs/cond-mat/0302430
Flux line lattice structure and behaviour in anti-phase boundary free vicinal YBa2Cu3O7-d thin films
Autor:
Durrell, J. H., Mennema, S. H., Jooss, Ch., Gibson, G., Barber, Z. H., Zandbergen, H. W., Evetts, J. E.
Publikováno v:
Durrell et al (2003), Journal of Applied Physics, 93 (12), 9869
Field angle dependent critical current, magneto-optical microscopy, and high resolution electron microscopy studies have been performed on YBa2Cu3O7-d thin films grown on mis-cut substrates. High resolution electron microscopy images show that the fi
Externí odkaz:
http://arxiv.org/abs/cond-mat/0301500
Publikováno v:
European Physical Journal B 29, 359-367 (2002)
We investigate the description of current transfer in polycrystalline superconductors by percolation theory and its limitations. Various computer models that have been proposed are reviewed and related to the experimental and theoretical framework. W
Externí odkaz:
http://arxiv.org/abs/cond-mat/0204082
We have performed V-I measurements on a thin film YBa2Cu3O7 4^o [001] tilt low angle grain boundary over an extensive range of temperature and field, verifying the presence of a linear characteristic. We report on the occurrence of the linear charact
Externí odkaz:
http://arxiv.org/abs/cond-mat/0101303
Publikováno v:
Philosophical Transactions: Mathematical, Physical and Engineering Sciences, 1998 Jul . 356(1742), 1693-1712.
Externí odkaz:
https://www.jstor.org/stable/54884