Title :
Levitation force in YBCO/Nd-Fe-B permanent magnet system
Author :
Lee, Haigun ; Iwasa, Yukikazu
Author_Institution :
Francis Bitter Nat. Magnet Lab., MIT, Cambridge, MA, USA
fDate :
3/1/2001 12:00:00 AM
Abstract :
This paper presents an experimental study of the levitation force on a bulk high-temperature superconducting YBCO disk in liquid nitrogen above a Nd-Fe-B permanent magnet disk. The force data agree with Kordynk´s “frozen-image” model that states that levitation force is independent of YBCO disk thickness and is greater with defective YBCO disks than with defect-free YBCO disks
Keywords :
barium compounds; boron alloys; copper compounds; high-temperature superconductors; iron alloys; magnetic fields; magnetic forces; magnetic levitation; neodymium alloys; permanent magnets; superconducting magnets; yttrium compounds; Kordynk´s frozen-image model; Maglev; YBaCuO-NdFeB; YBaCuO/NdFeB permanent magnet system; bulk high-temperature superconductor; disk thickness; levitation force; liquid nitrogen; permanent magnet disk; Force measurement; High temperature superconductors; Laboratories; Magnetic flux; Magnetic levitation; Magnetization; Permanent magnets; Superconducting magnets; Type II superconductors; Yttrium barium copper oxide;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
