Science · 1995 · 106 citations · 11 references
Natural SciencesMaterials SciencePhysicsCondensed Matter PhysicsSolid State PhysicsThin FilmsDopingFerroelectric CeramicsFerroelectric MaterialsSuperconducting MaterialsSuperconducting Thin FilmsThin Film Electrical PropertiesEpitaxial Thin FilmsFerroelectric PropertiesFerroelectric Thin FilmsFerroelectricityPolarizationSpontaneous Polarization
A ferroelectric field effect in epitaxial thin film SrCuO(2)/Pb(Zr(0.52)Ti(0.48))O(3) heterostructures was observed. A 3.5 percent change in the resistance of a 40 angstrom SrCuO(2) layer (a parent high-temperature superconducting compound) was measured when the polarization field of the Pb(Zr(0.52)Ti(0.48))O(3) layer was reversed by the application of a pulse of small voltage (<5 volts). This effect, both reversible and nonvolatile, is attributed to the electric field-induced charge at the interface of SrCuO(2) and Pb(Zr(0.52)Ti(0.48))O(3). This completely epitaxial thin film approach shows the possibility of making nonvolatile, low-voltage ferroelectric field effect devices for both applications and fundamental studies of field-induced doping in novel compounds like SrCuO(2).
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Electron-doped superconductivity at 40 K in the infinite-layer compound Sr1–yNdyCu02
M.G. Smith, Arumugam Manthiram, Jun Zhou et al. · Nature · 1991 · 459 citations
Epitaxial Cuprate Superconductor/Ferroelectric Heterostructures
R. Ramesh, A. Inam, W.K. Chan et al. · Science · 1991 · 225 citations