ELNES analysis of γ-Al 2 O 3 /SrTiO 3 and LaTiO 3 /SrTiO 3 interfaces

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...

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

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...

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...

Electric Field Dependent Specific Heat of SrTiO 3 , BaTiO 3 and KTaO 3 Ferroelectric Perovskites

The field dependent specific heat of anharmonic ABO3 type displacive ferroelectrics (SrTiO3, BaTiO3 & KTaO3) is studied using double time Green’s function technique along with Silverman-Joseph modified Hamiltonian which includes anharmonicity up to the fourth order due to the interaction of the soft mode. The soft mode contributions to specific heat are described by appropriate Einstein terms. ...