Hard x-ray photoemission and density functional theory study of the internal electric field in SrTiO<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mrow/><mml:mn>3</mml:mn></mml:msub></mml:math>/LaAlO<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mrow/><mml:mn>3</mml:mn></mml:msub></mml:math>oxide heterostructuresE. Slooten, M. S. Golden, H. J. A. Molegraaf et al.|Physical Review B|2013Cited by 70