%0 Journal Article %K Magnetoresistance %K Room temperature %K Exchange bias %K Bismuth compounds %K Heterojunctions %K Ion exchange %K Thermal effects %K Paramagnetic resonance %K Multiferroic antiferromagnets %K Spin valve structures %A L.W Martin %A Y.-H Chu %A Q Zhan %A Ramamoorthy Ramesh %A S.-J Han %A S.X Wang %A M Warusawithana %A D.G Schlom %B Applied Physics Letters %D 2007 %G eng %R 10.1063/1.2801695 %T Room temperature exchange bias and spin valves based on BiFeO 3/SrRuO3SrTi/O3/Si (001) heterostructures %V 91