TY - JOUR
KW - Magnetoresistance
KW - Room temperature
KW - Exchange bias
KW - Bismuth compounds
KW - Heterojunctions
KW - Ion exchange
KW - Thermal effects
KW - Paramagnetic resonance
KW - Multiferroic antiferromagnets
KW - Spin valve structures
AU - L.W Martin
AU - Y.-H Chu
AU - Q Zhan
AU - Ramamoorthy Ramesh
AU - S.-J Han
AU - S.X Wang
AU - M Warusawithana
AU - D.G Schlom
AB - We report the growth and characterization of exchange bias and spin valve heterostructures based on the multiferroic antiferromagnet BiFe O3 on Si (001) substrates. Using Co0.9 Fe0.1 as the ferromagnet, we demonstrate heterostructures with large negative exchange bias and negligible training (or a decrease in exchange bias field as a function of repeated magnetic cycling) at room temperature. We additionally report the manufacture of spin valve structures that have been found to have current in-plane magnetoresistance of over 2.25% at room temperature. © 2007 American Institute of Physics.
BT - Applied Physics Letters
DO - 10.1063/1.2801695
LA - eng
M1 - 17
N1 - cited By 97
N2 - We report the growth and characterization of exchange bias and spin valve heterostructures based on the multiferroic antiferromagnet BiFe O3 on Si (001) substrates. Using Co0.9 Fe0.1 as the ferromagnet, we demonstrate heterostructures with large negative exchange bias and negligible training (or a decrease in exchange bias field as a function of repeated magnetic cycling) at room temperature. We additionally report the manufacture of spin valve structures that have been found to have current in-plane magnetoresistance of over 2.25% at room temperature. © 2007 American Institute of Physics.
PY - 2007
T2 - Applied Physics Letters
TI - Room temperature exchange bias and spin valves based on BiFeO 3/SrRuO3SrTi/O3/Si (001) heterostructures
VL - 91
SN - 00036951
ER -