Defect Engineering in Oxide Heterostructures by Enhanced Oxygen Surface Exchange

Mark Huijben, Gertjan Koster, Michelle K. Kruize, Sander Wenderich, Jo Verbeeck, Sara Bals, Erik Slooten, Bo Shi, Hajo Molegraaf, Josee E. Kleibeuker, Sandra van Aert, Jeroen B. Goedkoop, Alexander Brinkman, Dave H.A. Blank, Mark S. Golden, Gustaaf van Tendeloo, Hans Hilgenkamp, Guus Rijnders

Research output: Contribution to journalArticleAcademicpeer-review

85 Citations (Scopus)
2 Downloads (Pure)


The synthesis of materials with well-controlled composition and structure improves our understanding of their intrinsic electrical transport properties. Recent developments in atomically controlled growth have been shown to be crucial in enabling the study of new physical phenomena in epitaxial oxide heterostructures. Nevertheless, these phenomena can be influenced by the presence of defects that act as extrinsic sources of both doping and impurity scattering. Control over the nature and density of such defects is therefore necessary to fully understand the intrinsic materials properties and exploit them in future device technologies. Here, it is shown that incorporation of a strontium copper oxide nano-layer strongly reduces the impurity scattering at conducting interfaces in oxide LaAlO3–SrTiO3(001) heterostructures, opening the door to high carrier mobility materials. It is proposed that this remote cuprate layer facilitates enhanced suppression of oxygen defects by reducing the kinetic barrier for oxygen exchange in the hetero-interfacial film system. This design concept of controlled defect engineering can be of significant importance in applications in which enhanced oxygen surface exchange plays a crucial role.
Original languageEnglish
Pages (from-to)5240-5248
Number of pages9
JournalAdvanced functional materials
Issue number42
Publication statusPublished - 2013


Dive into the research topics of 'Defect Engineering in Oxide Heterostructures by Enhanced Oxygen Surface Exchange'. Together they form a unique fingerprint.

Cite this