SrTiO$_3$ termination control: A method to tailor the oxygen exchange kinetics

Felix V. E. Hensling; Christoph Baeumer; Marc-André Rose; Felix Gunkel; Regina Dittmann

doi:10.1080/21663831.2019.1682705

SrTiO$_3$ termination control: A method to tailor the oxygen exchange kinetics

Materials Science 2019-11-15 v1

Authors: Felix V. E. Hensling , Christoph Baeumer , Marc-André Rose , Felix Gunkel , Regina Dittmann

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Abstract

We provide insights into the influence of surface termination on the oxygen vacancy incorporation for the perovskite model material SrTiO3 during annealing in reducing gas environments. We present a novel approach to control to tailor the oxygen vacancy formation by controlling the termination. We prove that a SrO-termination can inhibit the incorporation of oxygen vacancies across the (100)-surface and apply this to control their incorporation during thin film growth. Utilizing the conducting interface between LaAlO3 and SrTiO3, we could tailor the oxygen-vacancy based conductivity contribution by the level of SrO termination at the interface.

Keywords

oxide interfaces

Cite

@article{arxiv.1907.06095,
  title  = {SrTiO$_3$ termination control: A method to tailor the oxygen exchange kinetics},
  author = {Felix V. E. Hensling and Christoph Baeumer and Marc-André Rose and Felix Gunkel and Regina Dittmann},
  journal= {arXiv preprint arXiv:1907.06095},
  year   = {2019}
}

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