Metallic interfaces in a CaTiO3 / LaTiO3 superlattice

Structural Response of BaTiO3/CaTiO3 Superlattice to Applied Electric Fields

The structural response of a ferroelectric BaTiO3/dielectric CaTiO3 superlattice to the bipolar applied electric field was studied using time-resolved x-ray microdiffraction. Structural results were compared to the polarization-electric field hysteresis curve obtained from electrical measurements. The superlattice x-ray reflections were found to have a broad distribution of intensity in recipro...

Photoemission from buried interfaces in SrTiO3/LaTiO3 superlattices.

We have measured photoemission spectra of SrTiO3/LaTiO3 superlattices with a topmost SrTiO3 layer of variable thickness. A finite coherent spectral weight with a clear Fermi cutoff was observed at chemically abrupt SrTiO3/LaTiO3 interfaces, indicating that an "electronic reconstruction" occurs at the interface between the Mott insulator LaTiO3 and the band insulator SrTiO3. For SrTiO3/LaTiO3 in...

Electronic reconstruction at SrMnO3-LaMnO3 superlattice interfaces.

We use resonant soft-x-ray scattering (RSXS) to study the electronic reconstruction at the interface between the Mott insulator LaMnO3 and the band insulator SrMnO3. Superlattices of these two insulators were shown previously to have both ferromagnetism and metallic tendencies [Koida, Phys. Rev. B 66, 144418 (2002)10.1103/PhysRevB.66.144418]. By studying a judiciously chosen superlattice reflec...

Band structure of superlattice with graded interfaces

Metallic Interfaces in Harsh Chemo-mechanical Environments

BILGE YILDIZ, ANNA NIKIFOROVA and SIDNEY YIP 1 Department of Nuclear Science and Engineering, Massachusetts Institute of Technology Cambridge, MA 02139, USA 2 Department of Nuclear Science and Engineering and Department of Materials Science and Engineering Massachusetts Institute of Technology, Cambridge, MA 02139, USA 3 Center for Advanced Nuclear Energy Systems, MIT Corresponding author. E-ma...