The following article appeared in Appl. Phys. Lett. 87, 102906 (2005) and may also be found at http://link.aip.org/link/?APL/87/102906 .
S.M. Nakhmanson, K.M. Rabe, and David Vanderbilt, Polarization enhancement in two- and three-component ferroelectric superlattices (in PDF format).
See AIP Copyright Policy and Web Posting Policy.