TY - CPAPER
KW - Cooling
KW - Pulsed laser deposition
KW - Crystal orientation
KW - Electrodes
KW - Hysteresis
KW - Lanthanum compounds
KW - Polarization
KW - Ferroelectric materials
KW - Heterojunctions
KW - Lead compounds
KW - Capacitors
KW - Pulsed laser applications
KW - Lanthanum strontium cobalt oxide
KW - Fatigue of materials
KW - Titanium oxides
KW - Imprint behavior
KW - Lead lanthanum zirconium titanate
KW - Oxygen ambient
AU - J Lee
AU - Ramamoorthy Ramesh
AU - V.G Keramidas
AB - La-Sr-Co-O(LSCO)/Pb-La-Zr-Ti-O(PLZT)/La-Sr-Co-O heterostructures with different crystalline quality have been grown on LaAlO3 and Si with a bismuth titanate template layer. Imprint of the heterostructures are investigated in comparison with fatigue and retention. Oxygen ambient during cooling the heterostructures was also varied to investigate the imprint. With consideration of the switching behavior caused by imprint, imprint behavior was deconvoluted from fatigue and retention. In epitaxial PLZT capacitors grown on LaAlO3, imprint behavior was found to be significantly dependent on the oxygen ambient. As the oxygen ambient became more reducing, the capacitors developed more voltage asymmetry in hysteresis loops and a more preferred polarization state directed towards the top electrode. On the other hand, oriented PLZT capacitors exhibited less pronounced effect of the oxygen ambient on the imprint behavior.
BT - Proceedings of the Materials Research Society Symposium -
LA - eng
N1 - cited By 12
N2 - La-Sr-Co-O(LSCO)/Pb-La-Zr-Ti-O(PLZT)/La-Sr-Co-O heterostructures with different crystalline quality have been grown on LaAlO3 and Si with a bismuth titanate template layer. Imprint of the heterostructures are investigated in comparison with fatigue and retention. Oxygen ambient during cooling the heterostructures was also varied to investigate the imprint. With consideration of the switching behavior caused by imprint, imprint behavior was deconvoluted from fatigue and retention. In epitaxial PLZT capacitors grown on LaAlO3, imprint behavior was found to be significantly dependent on the oxygen ambient. As the oxygen ambient became more reducing, the capacitors developed more voltage asymmetry in hysteresis loops and a more preferred polarization state directed towards the top electrode. On the other hand, oriented PLZT capacitors exhibited less pronounced effect of the oxygen ambient on the imprint behavior.
PB - Materials Research Society, Pittsburgh, PA, United States
PY - 1995
SP - 67
EP - 78
T2 - Proceedings of the Materials Research Society Symposium -
T3 - Materials Research Society Symposium -
TI - Imprint of La-Sr-Co-O/Pb-La-Zr-Ti-O/La-Sr-Co-O heterostructures grown by pulsed laser deposition
VL - 361
SN - 02729172
ER -