Nature Communications (Feb 2016)

Giant conductivity switching of LaAlO3/SrTiO3 heterointerfaces governed by surface protonation

  • Keith A. Brown,
  • Shu He,
  • Daniel J. Eichelsdoerfer,
  • Mengchen Huang,
  • Ishan Levy,
  • Hyungwoo Lee,
  • Sangwoo Ryu,
  • Patrick Irvin,
  • Jose Mendez-Arroyo,
  • Chang-Beom Eom,
  • Chad A. Mirkin,
  • Jeremy Levy

DOI
https://doi.org/10.1038/ncomms10681
Journal volume & issue
Vol. 7, no. 1
pp. 1 – 6

Abstract

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The interface between two oxide materials can play host to numerous exotic phenomenon. Here, the authors observe a four order of magnitude change in the conductance at a lanthanum-aluminate–strontium-titanate interface controlled by surface protonation, which can be reversed by exposure to light.