层间反铁磁（AF)耦合 High field Low sensitivity 90 DAO 3AO AIAO http://www.fz-juelich.de/iff/e_news19-12-2006层间反铁磁（AF）耦合 http://www.fz-juelich.de/iff/e_news_19-12-2006 H≠0 High field Low sensitivity