JH Haeni, P Irvin, W Chang, Reinhard Uecker, P Reiche, YL Li, S Choudhury, Wei Tian, ME Hawley, B Craigo, AK Tagantsev, XQ Pan, SK Streiffer, Long-Qing Chen, SW Kirchoefer, J Levy, Darrell G Schlom, None,
Room-temperature ferroelectricity in strained SrTiO3. Nature. ,vol. 430, pp. 758- 761 ,(2004) ,
10.1038/NATURE02773