Magneto-Transport in S rT iO3−based Heterostructures: Tuning Through Multiple Electronic Ground-States

TYPECondensed Matter Seminar
Speaker:Dr. Moshe Ben Shalom
Location:Lidow Nathan Rosen (300)
Abstract:Sharp interfaces can host phenomena that are absent in their constituting materials. By depositing
a thin layer of LaAlO3 on top of SrTiO3 , the interface between these two band-insulator is highly
conducting. Moreover, a ferromagnetic ground state was detected and recently imaged to coexist
with superconductivity. Conductivity emerges only for the TiO2/LaO interface assembly, and above
a critical LaAlO3 thickness of 4 atomic layers, pointing to the importance of the polar structure.
This transition from insulating to high mobility electron gas, and a superconducting phase at low
temperatures, can be controlled continuously by gate voltage, thus enabling a careful study of their
Through this talk, I will present a study of the mesoscopic -magneto-transport characteristics of our
samples while comparing to other SrTiO3 based heterostructures.