Enhanced stability by field cooling in superconducting levitation with translational symmetry

被引：40
作者：
Del Valle, Nuria
Sanchez, Alvaro [1 ]
Pardo, Enric
Navau, Carles
Chen, Du-Xing
机构：
[1] Univ Autonoma Barcelona, Dept Fis, Grp Electromagnet, E-08193 Bellaterra, Spain
[2] Escola Univ Salesiana Sarrita, E-08017 Barcelona, Spain
[3] ICREA, E-08010 Barcelona, Spain
[4] Univ Autonoma Barcelona, Dept Fis, Grp Electromagnet, Bellaterra, Spain
来源：
APPLIED PHYSICS LETTERS | 2007年 / 91卷 / 11期
关键词：
PERMANENT-MAGNET; FORCE; STIFFNESS;
D O I：
10.1063/1.2785169
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The force and stability of a levitating system consisting of an infinitely long superconductor and different arrangements of infinitely long parallel permanent magnets are theoretically analyzed for two different cooling processes, field and zero-field cooling, by using a model based on the critical-state model and a magnetic energy minimization procedure. The authors find that by cooling the superconductor near the magnets, one can obtain improved lateral stability as compared to the case of zero-field cooling.
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页数：3
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