Infrared ellipsometry study of photogenerated charge carriers at the (001) and (110) surfaces of SrTiO3 crystals and at the interface of the corresponding LaAlO3/SrTiO3 heterostructures

  title={Infrared ellipsometry study of photogenerated charge carriers at the (001) and (110) surfaces of SrTiO3 crystals and at the interface of the corresponding LaAlO3/SrTiO3 heterostructures},
  author={Meghdad Yazdi-Rizi and Premysl Marsik and B. P. P. Mallett and K. Sen and Andrea Cerreta and Adam Dubroka and Mateusz Scigaj and Filomeno Sanchez and Gervasi Herranz and Christian Bernhard},
  journal={Physical Review B},
The work at the University of Fribourg was supported by the Schweizerische Nationalfonds (SNF) through Grant No. 200020-153660. B.P.P.M. wishes to acknowledge support from the Marsden Fund of New Zealand. The work at MUNI was financially supported by the Ministry of education youth and sports of the Czech Republic, under the project CEITEC 2020 (LQ1601). M.S., F.S., and G.H. acknowledge the support by the Spanish Government through Project No. MAT2014-56063-C2-1-R, the Severo Ochoa Grant No… 

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  • Rev. Lett. 104, 156807
  • 2010
  • Rev. B 19, 3593
  • 1979
  • Mater. 9, 482
  • 2010
Science 323
  • 1026
  • 2009
Science 313
  • 1942
  • 2006
Nature (London) 427
  • 423
  • 2004
  • Rev. 155, 796
  • 1967
  • Rev. 134, A442
  • 1964