A magnetic tunnel junction (MTJ) magnetoresistive read head for a magnetic recording system has the MTJ device located between two spaced-apart magnetic shields. The magnetic shields, which allow the head to detect individual magnetic transitions from the magnetic recording medium without interference...http://www.google.com/patents/US5898548?utm_source=gb-gplus-sharePatent US5898548 - Shielded magnetic tunnel junction magnetoresistive read head
