中国物理B ›› 2015, Vol. 24 ›› Issue (11): 118404-118404.doi: 10.1088/1674-1056/24/11/118404

• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇    下一篇

Stability of magnetic tip/superconductor levitation systems

M. K. Alqadi   

  1. Department of Physics, Jordan University of Science and Technology, Irbid, Jordan
  • 收稿日期:2015-05-31 修回日期:2015-07-01 出版日期:2015-11-05 发布日期:2015-11-05
  • 通讯作者: M. K. Alqadi E-mail:malqadi@just.edu.jo

Stability of magnetic tip/superconductor levitation systems

M. K. Alqadi   

  1. Department of Physics, Jordan University of Science and Technology, Irbid, Jordan
  • Received:2015-05-31 Revised:2015-07-01 Online:2015-11-05 Published:2015-11-05
  • Contact: M. K. Alqadi E-mail:malqadi@just.edu.jo

摘要: The vertical stability of a magnetic tip over a superconducting material is investigated by using the critical state and the frozen image models. The analytical expressions of the stiffness and the vibration frequency about the equilibrium position are derived in term of the geometrical parameters of the magnet/superconductor system. It is found that the stability of the system depends on the shape of the superconductor as well as its thickness.

关键词: superconducting ring, magnetic tip, stability, critical state model

Abstract: The vertical stability of a magnetic tip over a superconducting material is investigated by using the critical state and the frozen image models. The analytical expressions of the stiffness and the vibration frequency about the equilibrium position are derived in term of the geometrical parameters of the magnet/superconductor system. It is found that the stability of the system depends on the shape of the superconductor as well as its thickness.

Key words: superconducting ring, magnetic tip, stability, critical state model

中图分类号:  (Superconducting magnets; magnetic levitation devices)

  • 84.71.Ba
74.25.Ha (Magnetic properties including vortex structures and related phenomena)