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Publikováno v:
Journal of Superconductivity and Novel Magnetism. 26:1489-1493
Using accurate magnetostriction simulation models during the various design stages of their related devices can positively contribute to the enhancement of their precision. These models are indispensable to different crucial computational activities
Autor:
M. Mahtali, S. Chamekh
Publikováno v:
Journal of Superconductivity and Novel Magnetism. 24:351-355
Among the superconducting phases of bismuth-based Bi–Sr–Ca–Cu–O, compound Bi2Sr2Ca2Cu3O10+δ (Bi-2223) is the most interesting because of its relatively high critical temperature (TC=95–110 K) and numerous applications. However, this phase
Autor:
L. Bougarfa, M. Bghour, B. Lmouden, A. Taoufik, S. Senoussi, A. Bouaaddi, M. Mahtali, F. Chibane, Z. Enneffah, A. Ramzi, Abdelhakim Nafidi, A. Labrag, E. H. Boudjema, A. Tirbiyine
Publikováno v:
Annales de chimie Science des Matériaux. 35:249-253
Recently, the study of noise in high temperature critical superconductor is a adequate mean to search for disorder and dynamics of vortices in such materials [1], also to understand the origins of excess conducting noise [2-3], several causes are ori
Publikováno v:
Surface and Interface Analysis. 42:996-999
YBa 2 Cu 3 O 7-δ cuprate is a suitable system for the study of impurity effect on superconducting properties because carrier concentration can be widely changed without introducing significant disorder. Thus, the effect of replacing Cu by Co atoms,
Publikováno v:
Surface and Interface Analysis. 42:935-940
The addition of elements as impurities to superconducting compounds generally varies their physical properties and more information on the possible mechanisms of superconductivity is obtained through impurity studies. It is known that the rare-earth
Publikováno v:
physica status solidi c. 3:3040-3043
In this work we present a study of Zn impurity effects on the YBa2Cu3O7–δ high Tc superconducting ceramics prepared by the solid state reaction method. X-ray diffraction (XRD), scanning electron microscopy (SEM) and differential thermal analysis (
Publikováno v:
Sciences & Technologie, Vol 0, Iss 23, Pp 39-42 (2005)
Superconducting YBa2Cu3O7-δ (Y-123) ceramics were prepared by the solid-state reaction method. The microstructure and superconducting properties of the sintered samples obtained under various conditions were investigated by means of X-ray diffractio
Autor:
Mustapha Bghour, Abdelhakim Nafidi, Abella Bouaaddi, M. Mahtali, A. Taoufik, Hassan Elouadi, E. H. Boudjema, H. El hamidi, M. Boudhira, Hassan Chaib, Abdelhalim Hafid, B. Elmouden, Ahmed Tirbiyine
Publikováno v:
MATEC Web of Conferences, Vol 5, p 04001 (2013)
In this work we intend to study the pinned vortex fraction in type II superconductors. The sample used is the YBa2Cu3O7-γ. In continuation one will study the variations of this fraction according to the transport current density for two values of ma
Publikováno v:
AIP Conference Proceedings.
Cobalt doped TiO2 thin films (Co: TiO2, Co: 0-2-4-6 at. %) have been prepared by sol-gel method onto glass substrate at room temperature. The obtained films have been annealed at 500°C for 2 hours. X-ray diffraction patterns showed that all Al: TiO2