1.Renewed interest in submicron scale ferromagnetic nanocontacts has been stimulated greatly by the discovery of ballistic magnetoresistance (BMR) in 1999.

• 1999年，弹道磁电阻效应(Ballisticmagnetoresistance)的发现激起了人们对亚微米级的铁磁性纳米接触的研究热潮。