第一周课件.pdf

2007 Nobel Prize in Physics Discovery of Giant MagnetoresistanceGMR,1988 Read-out heads for compact hard drives Electromagnetism The first read-out head based on the GMR effect was launched in 1997. Modern read-out techniques are modifications of the same Electricity and magnetism system. Lectured by 320 Diao Xungang ) Ω ( R 315 Beihang University -0.5 0.0 0.5