Extreme Reconfigurable Nanoelectronics at the CaZrO 3 /SrTiO 3 Interface

Origin of Interface Magnetism in BiMnO 3 / SrTiO 3 and LaAlO 3 / SrTiO 3

Possible ferromagnetism induced in otherwise nonmagnetic materials has been motivating intense research in complex oxide heterostructures. Here we show that a confined magnetism is realized at the interface between SrTiO3 and two insulating polar oxides, BiMnO3 and LaAlO3. By using polarization dependent x-ray absorption spectroscopy, we find that in both cases the magnetism can be stabilized b...

Electrical properties and subband occupancy at the ( La , Sr ) ( Al , Ta ) O 3 / SrTiO 3 interface

K. Han,1,2 Z. Huang,1,2,* S. W. Zeng,1,2 M. Yang,3 C. J. Li,4 W. X. Zhou,1,2 X. Renshaw Wang,5 T. Venkatesan,1,2,4,6,7 J. M. D. Coey,1,8 M. Goiran,3 W. Escoffier,3 and Ariando1,2,6,† 1NUSNNI-NanoCore, National University of Singapore, Singapore 117411, Singapore 2Department of Physics, National University of Singapore, Singapore 117542, Singapore 3Laboratoire National des Champs Magnétiques Int...

Energy - loss structure in core - level photoemission satellites of SrTiO 3 , SrTiO 3 : La , and SrTiO 3

Superconductivity of SrTiO 3 − δ

Superconducting SrTiO 3−δ was obtained by annealing single crystalline SrTiO3 samples in ultra high vacuum. An analysis of the V (I) characteristics revealed very small critical currents Ic which can be traced back to a unavoidable doping inhomogeneity. R(T) curves were measured for a range of magnetic fields B at I ≪ Ic, thereby probing only the sample regions with highest doping level. The re...

Interface Fermi States of LaAlO 3 / SrTiO 3 and Related Heterostructures CANCELLIERI , Claudia

The interfaces of LaAlO3/SrTiO3 and (LaAlO3)x(SrTiO3)1−x/SrTiO3 heterostructures have been investigated by soft x-ray photoelectron spectroscopy for different layer thicknesses across the insulator-to-metal interface transition. The valence band and Fermi edge were probed using resonant photoemission across the Ti L2,3 absorption edge. The presence of a Fermi-edge signal originating from the pa...