Bean Model tagged posts

This image of a magnet levitated over a high-temperature superconductor array shows rectangular TFMs (black) levitating a heavy ferromagnet (silver) above a container of liquid nitrogen. Credit: Weinstein/University of Houston

Uni of Houston physicists report finding major theoretical flaws in the generally accepted understanding of how a superconductor traps and holds a magnetic field. More than 50 years ago, C.P. Bean, a scientist at GE, developed a theoretical explanation known as the “Bean Model” or “Critical State Model.” The basic property of superconductors is they represent 0 “resistance” to electrical circuits. Superconductors consume 0 energy and can store it for a long period of time. Those that store magnetic energy ie “trapped field magnets” or TFMs – can behave like a magnet.