Published: September 01, 2012Received: January 30, 2012Available on J-STAGE: December 07, 2013Accepted: August 17, 2012
Advance online publication: -
Revised: -
CrO2 is a ferromagnetic half metal with 100% polarization of conduction electrons, and MgO has been known as to be good barrier for TMR. We prepared the granular junctions from the mixture of CrO2 and MgO. The field dependent resistivity of (MgO)x(CrO2)1-x showed that the magneto-resistance ratio becomes maximum at x=0.6.
