Pulsed laser deposition-induced reduction of SrTiO3 crystals

Scullin, Matthew L. and Ravichandran, Jayakanth and Yu, Choongho and Huijben, Mark and Seidel, Jan and Majumdar, Arun and Ramesh, R. (2010) Pulsed laser deposition-induced reduction of SrTiO3 crystals. Acta Materialia, 58 (2). pp. 457-463. ISSN 1359-6454

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Abstract:	We report a generic method for fast and efficient reduction of strontium titanate (SrTiO3, STO) single crystals by pulsed laser deposition (PLD) of thin-films. The reduction was largely independent of the thin-film material deposited on the crystals. It is shown that thermodynamic conditions (450 °C, 10−7 torr, 10–60 min), which normally reduce STO (0 0 1) substrates to roughly 5 nm into a crystal substrate, can reduce the same crystals throughout their 500 μm thickness when coupled with the PLD. In situ characterization of the STO substrate resistance during thin-film growth is presented. This process opens up the possibility of employing STO substrates as a back-gate in functional oxide devices
Item Type:	Article
Copyright:	© 2009 Acta Materialia Inc
Faculty:	Science and Technology (TNW)
Research Group:	Inorganic Materials Science (IMS)
Link to this item:	http://purl.utwente.nl/publications/75247
Official URL:	http://dx.doi.org/10.1016/j.actamat.2009.09.024
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Metis ID: 269425