Chemistry and structure of homoepitaxial SrTiO3 films and their influence on oxide-heterostructure interfaces
Chemistry and structure of homoepitaxial SrTiO3 films and their influence on oxide-heterostructure interfaces
The properties of single-crystal SrTiO3 substrates and homoepitaxial SrTiO3 films grown by pulsed laser deposition have been compared, in order to understand the loss of interfacial conductivity when more than a critical thickness of nominally homoepitaxial SrTiO3 is inserted between a LaAlO3 film and a SrTiO3 substrate. In particular, the …