Vortex Dynamics in the High-Temperature Superconductors Yba2Cu3O7 and Bi2Sr2CaCu2O8+d in Low- and High-Dissipative Transport Measurements - Couverture souple

Voss-De Haan,, Patrick

 
9783898210249: Vortex Dynamics in the High-Temperature Superconductors Yba2Cu3O7 and Bi2Sr2CaCu2O8+d in Low- and High-Dissipative Transport Measurements
Couverture souple
ISBN 10 : 3898210243 ISBN 13 : 9783898210249
Editeur : ibidem-Verlag, Jessica Haunschild u Christian Schon, 2000

Synopsis

Since their discovery in 1986, high-temperature superconductors (Htsc) are considered interesting physical systems as well as attractive candidates for a variety of technical applications. In both cases one of the key aspects to be understood is the mechanism of power dissipation, which depends primarily on vortex dynamics: the movement of magnetic flux lines in the superconductor when a transport current is applied.
The present work studies vortex dynamics in experiments on two of the most prominent types of Htsc materials, Yba2Cu3O7 (Ybco) and Bi2Sr2CaCu2O8+d (Bscco), in the limit of low and high current densities. Both, the applied transport current density and the dimensionality of the materials, strongly influence the dynamic response.
For the low current limit in Bscco this thesis concentrates on the influence of oxygen stoichiometry and in Ybco on a vortex glass phase, which indicates a true superconducting state with vanishing linear resistivity. In the high current limit, for the first time, a vortex instability is shown to exist in Bscco, apparently arising from a fluid phase, while a similar phenomenon in Ybco reveals a clear correlation of the high-dissipative instability to the low-dissipative vortex glass phase.
The author: A native of Hamburg, Germany, Patrick Voss-de Haan studied physics at Stanford University and the University of Mainz. After completing a degree in the area of atomic physics and laser spectroscopy he began his work in solid state physics and superconductors, from which this Ph.D. thesis was compiled.

Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.

Présentation de l'éditeur

Since their discovery in 1986, high-temperature superconductors (Htsc) are considered interesting physical systems as well as attractive candidates for a variety of technical applications. In both cases one of the key aspects to be understood is the mechanism of power dissipation, which depends primarily on vortex dynamics: the movement of magnetic flux lines in the superconductor when a transport current is applied.
The present work studies vortex dynamics in experiments on two of the most prominent types of Htsc materials, Yba2Cu3O7 (Ybco) and Bi2Sr2CaCu2O8+d (Bscco), in the limit of low and high current densities. Both, the applied transport current density and the dimensionality of the materials, strongly influence the dynamic response.
For the low current limit in Bscco this thesis concentrates on the influence of oxygen stoichiometry and in Ybco on a vortex glass phase, which indicates a true superconducting state with vanishing linear resistivity. In the high current limit, for the first time, a vortex instability is shown to exist in Bscco, apparently arising from a fluid phase, while a similar phenomenon in Ybco reveals a clear correlation of the high-dissipative instability to the low-dissipative vortex glass phase.
The author: A native of Hamburg, Germany, Patrick Voss-de Haan studied physics at Stanford University and the University of Mainz. After completing a degree in the area of atomic physics and laser spectroscopy he began his work in solid state physics and superconductors, from which this Ph.D. thesis was compiled.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
ibidem-Verlag, Jessica Haunschild u Christian Schon
Date d'édition
2000
Langue
anglais
ISBN 10 
3898210243
ISBN 13 
9783898210249
Reliure
Broché
Numéro d'édition
2
Nombre de pages
147
Coordonnées du fabricant
non disponible
Personne responsable
non disponible