Related Experiment Video
Updated: Mar 19, 2026

Tuning Oxide Properties by Oxygen Vacancy Control During Growth and Annealing
Published on: June 9, 2023
In Situ Control of Separate Electronic Phases on SrTiO3 Surfaces by Oxygen Dosing
Lenart Dudy1, Michael Sing2, Philipp Scheiderer2
1Physikalisches Institut and Röntgen Center for Complex Material Systems (RCCM), Universität Würzburg, D-97074, Würzburg, Germany. lenart.dudy@physik.uni-wuerzburg.de.
Abstract:
Insulating SrTiO3 (STO) can host 2D electron systems (2DESs) on its surfaces, caused by oxygen defects. This study shows that the STO surface exhibits phase separation once the 2DES is formed and relates this inhomogeneity to recently reported magnetic order at STO surfaces and interfaces. The results open pathways to exploit oxygen defects for engineering the electronic and magnetic properties of oxides.

