Ferroelectricity in ultrathin BaTiO3 films: probing the size effect by ultraviolet Raman spectroscopy.
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Phys Rev Lett. 2009 Oct 23;103(17):177601. doi: 10.1103/PhysRevLett.103.177601. Epub 2009 Oct 21.
Phys Rev Lett. 2009.
PMID: 19905783