University of Minnesota
School of Physics & Astronomy

Physics and Astronomy Calendar

Wednesday, November 23rd 2016
4:30 pm:
CM Journal Club in PAN 110
Speaker: Han Fu
Subject: Electron transport in SrTiO3 (STO) accumulation layers

My talk is focused on the electron transport in SrTiO3 (STO) accumulation layers which can be induced on the interface between STO and other polar dielectrics. The nonlinear dielectric response of STO here makes the distribution of electron concentration special: it has a slowly decaying long tail of electrons. When the scattering is dominated by the surface, the tail electrons have a much higher mobility compared to those close to the interface and it turns out that they dominate the total conductivity though their concentration is small. I will explain in detail how this happens together with the divergence of other quantities and compare with experimental data.

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