| Abstract Scope |
Through detailed thin film growth, synchrotron x-ray scattering, electronic transport, and first-principles calculations, we will present detailed molecular beam epitaxy (MBE) growth, and epitaxial stabilization of different polymorphs of SrSnO3 (SSO) at room temperature (RT) in thin film form. Compressive strain stabilized the high-symmetry tetragonal phase of SSO at RT, which, in bulk, exists only at temperatures above 1062 K. A mobility enhancement of over 300% in doped tetragonal phase of SSO films compared with the low temperature orthorhombic polymorph was achieved. We will discuss these results in the context of the role of strain, doping and disorder on structure and electronic transport of doped SSO films.
Work supported by AFOSR YIP and NSF DMR. |