학술논문
Temperature Dependence of Magnetic Flux Drag Torque for a Single Grain YBa2Cu3O7 Superconductor
Document Type
Article
Author
Source
淡江理工學刊 / Journal of Applied Science and Engineering. Vol. 11 Issue 2, p127-130. 4 p.
Subject
Language
英文
ISSN
2708-9967
Abstract
A modified close cycle helium gas cryogenic system was used to measure the flux drag torque acting on a free spinning disk magnet by a single grain YBCO superconductor. It was found that at low spinning speed (less than 8 Hz) and constant levitation height, the flux drag torque decreased with temperature which behavior is roughly similar to the temperature dependence of the reciprocal of critical current density for a single grain superconductor.