Applied Physics Letters · 1990 · 59 citations · 7 references
Natural SciencesMaterials SciencePhysicsCeramic MaterialsCondensed Matter PhysicsSolid State PhysicsCrystal LatticeCrystalline MaterialsX-ray DiffractionCrystallinityPeriodic StructurePulsed Laser DepositionSecondary Ion Mass SpectrometrySuperlattice GrowthSuperlattice MaterialsSuperlatticesTime-of-flight Secondary Ion Mass Spectrometry
Superlattices of YBa2Cu3O7−x/YyPr1−yBa2Cu3O7−x(y=0.8 and 0.0) have been successfully grown in situ on MgO and LaAlO3 by using a multitarget pulsed laser deposition system. Satellite peaks have been observed in x-ray diffraction for the superlattices with modulation wavelengths from about few tens of angstroms to few hundred angstroms. The x-ray diffraction measurements also indicate that the multilayers have c axis normal to the substrates. Good crystallinity has been observed in the superlattices with He ion backscattering minimum yields of about 10%, indicating highly oriented growth. The presence of a periodic layer structure was further confirmed by the observation of composition oscillations in these structures by secondary-ion mass spectrometry.
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New Class of Layered Materials
Iván K. Schuller · Physical Review Letters · 1980 · 565 citations
High-temperature superconductivity in ultrathin films of Y1Ba2Cu3O7−<i>x</i>
T. Venkatesan, X. D. Wu, B. Dutta et al. · Applied Physics Letters · 1989 · 219 citations
Epitaxial Y1Ba2Cu3O7−<i>y</i>/Y1−<i>x</i>Pr<i>x</i>Ba2Cu3O7−<i>y</i> heterostructures
T. Venkatesan, A. Inam, B. Dutta et al. · Applied Physics Letters · 1990 · 82 citations