Ultrahigh-frequency complex-oxide acoustoelectronics

Research Topic

complex-oxide multilayers, in particular on top of the SrTiO3/LaAlO3 conducting interface, show interesting electronic, orbital and structural degrees of freedom. The latter leads to rich magnetic effects and superconductivity, which are not found in their semiconducting counterparts (e.g., like GaAs/AlGaAs).


Goals

The main goal of the project is the integration of SAW device technology with the LAO/STO 2DEG, in order to control and manipulate interfacial unique functionalities by SAW assisted transport experiments. In LAO/STO complex-oxide system, both materials are not piezoelectric although the piezoelectricity is the main requirement for SAW generation. For that reason, in this part of the project, it was decided to induce piezoelectricity in SrTiO3 (STO) (substrate material in this project) at cryogenic temperatures as the main task.

Fellow

Yigitcan Uzun

Host: University of Twente – MESA+ Institute for Nanotechnology

Scientific Background

I received my bachelor’s and master’s degree in Physics at Ege University, in Turkey with a strong motivation and background on solid-state physics and high-temperature superconductivity. Mainly, I focused on superconducting YBCO multilayer structures and device applications by using various thin film deposition, micro-lithography and cryogenic measurement facilities.