TY - JOUR
KW - Thin films
KW - Ablation
KW - Superconducting films
KW - Scanning electron microscopy
KW - Pulsed laser ablation (PLA)
KW - Crystal growth
KW - Ferroelectric materials
KW - High temperature superconductors
KW - Interfaces (materials)
KW - Laser pulses
KW - Crystal microstructure
KW - X-ray spectroscopy
KW - Lead titanate thin films
KW - Thermal expansion mismatch
AU - S.G Ghonge
AU - E Goo
AU - Ramamoorthy Ramesh
AB - Epitaxial ferroelectric PbTiO3/YBa2Cu 3O7-x heterostructures have been fabricated on [001] LaAlO3 by pulsed laser ablation. X-ray diffractometer scans showed only the (00l) peaks from the lead titanate and YBa2Cu 3O7-x film indicating c-axis growth. Transmission electron microscopy on planar and cross-sectional samples revealed a single domain film. The c-axis orientation in the lead titanate film is ascribed to the good lattice match of the a-axis of lead titanate with the a- or b-axes of the YBa2Cu3O7-x film. A cubic lead titanate film is deposited above the Curie point. Compressive stresses arise in the lead titanate film due to lattice mismatch. The c-axis orientation is favored since it reduces the compressive residual stresses.
BT - Applied Physics Letters
DO - 10.1063/1.109592
LA - eng
M1 - 15
N1 - cited By 23
N2 - Epitaxial ferroelectric PbTiO3/YBa2Cu 3O7-x heterostructures have been fabricated on [001] LaAlO3 by pulsed laser ablation. X-ray diffractometer scans showed only the (00l) peaks from the lead titanate and YBa2Cu 3O7-x film indicating c-axis growth. Transmission electron microscopy on planar and cross-sectional samples revealed a single domain film. The c-axis orientation in the lead titanate film is ascribed to the good lattice match of the a-axis of lead titanate with the a- or b-axes of the YBa2Cu3O7-x film. A cubic lead titanate film is deposited above the Curie point. Compressive stresses arise in the lead titanate film due to lattice mismatch. The c-axis orientation is favored since it reduces the compressive residual stresses.
PY - 1993
SP - 1742
EP - 1744
T2 - Applied Physics Letters
TI - Microstructure of c-axis oriented lead titanate thin films by pulsed laser ablation
VL - 62
SN - 00036951
ER -