@article{ferreiro2014thermoelectric,
  title={Thermoelectric properties of electron-doped SrTiO3 thin films},
  author={Ferreiro-Vila, Elias and Sarantopoulos, Alexandros and Leboran, Victor and Bui, Cong-Tinh and Rivadulla, Francisco},
  journal={Bulletin of the American Physical Society},
  volume={59},
  year={2014},
  publisher={APS March Meeting 2014},
abstract={Two dimensional conductors are expected to show an improved thermoelectric performance due the positive effect of quantum confinement on the thermoelectric power, and the decrease of thermal conductivity by interface boundary scattering. The recent report of a large increase of the thermoelectric power in quantum wells of Nb-doped SrTiO3 (STO) seems to be in agreement with this hypothesis. However, extrinsic effects like the existence of oxygen vacancies that propagate away from the interface cannot be ruled out, and the results are far from clear. Here we will show the thermoelectric properties (electrical conductivity, Seebeck coefficient, and Hall effect), of epitaxial thin-films of (La,Nb)-doped STO. The films have been deposited by PLD on different substrates (STO, LAO...) to study the effect of tensile/compressive stress on the thermoelectric properties of the system. The oxygen pressure during the deposition was carefully controlled to tune the amount of oxygen vacancies and to compare with the cation doping. We have performed a systematic study of the transport properties as a function of thickness and doping, which along with the effect of stress, allows to understand the effect of charge density and dimensionality in an oxide system with promising thermoelectric properties. [1] H. Ohta et al. Nat. Mat. \textbf{6}, (2007) 129. },
url={http://meetings.aps.org/link/BAPS.2014.MAR.F34.8}
}