Magneto-Transport in S rT iO3−based Heterostructures: Tuning Through Multiple Electronic Ground-States |
| TYPE | Condensed Matter Seminar |
| Speaker: | Dr. Moshe Ben Shalom |
| Affiliation: | TAU |
| Date: | 29.10.2013 |
| Time: | 14:30 |
| 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 evolution. Through this talk, I will present a study of the mesoscopic -magneto-transport characteristics of our samples while comparing to other SrTiO3 based heterostructures. |