Regular Papers
Magneto-Resistance Effects in BaTiO3/CrO2 Granular System
2011 年 36 巻 1 号 p. 51-54
詳細
2011 年 36 巻 1 号 p. 51-54
CrO2 is a ferromagnetic half metal with 100% polarization of conduction electrons, and BaTiO3 has been known as to be ferroelectric at room temperature. We prepared the multi-ferroic granular junctions from the mixture of CrO2 and BaTiO3. If the BaTiO3 forms a good tunneling barrier for conduction electrons, the enhancement of magneto-resistance ratio (MRR) can be expected. The field dependences of resistivity of (BaTiO3)x(CrO2)1-x showed that the | MRR | becomes maximum at x=0.5.
