<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Wolpert, D</style></author><author><style face="normal" font="default" size="100%">Korolev, K</style></author><author><style face="normal" font="default" size="100%">Sachs, S</style></author><author><style face="normal" font="default" size="100%">Knab, J</style></author><author><style face="normal" font="default" size="100%">Cox, W</style></author><author><style face="normal" font="default" size="100%">Cerne, J</style></author><author><style face="normal" font="default" size="100%">Markelz, A.G</style></author><author><style face="normal" font="default" size="100%">Zhao, T</style></author><author><style face="normal" font="default" size="100%">Ramesh, R</style></author><author><style face="normal" font="default" size="100%">Moeckly, B.H</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Direct measurements of optical phonons in SrTiO3 nanosystems</style></title><secondary-title><style face="normal" font="default" size="100%">Physica E: Low-dimensional Systems and Nanostructures</style></secondary-title><short-title><style face="normal" font="default" size="100%">Physica E: Low-dimensional Systems and Nanostructures</style></short-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Ferroelectrics</style></keyword><keyword><style  face="normal" font="default" size="100%">Finite size</style></keyword><keyword><style  face="normal" font="default" size="100%">Mode softening</style></keyword><keyword><style  face="normal" font="default" size="100%">phonons</style></keyword><keyword><style  face="normal" font="default" size="100%">Strontium titanate</style></keyword><keyword><style  face="normal" font="default" size="100%">Terahertz</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2003</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2003/07/01/</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://www.sciencedirect.com/science/article/pii/S1386947703003059</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">19</style></volume><pages><style face="normal" font="default" size="100%">236 - 239</style></pages><isbn><style face="normal" font="default" size="100%">1386-9477</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;We use terahertz time domain spectroscopy to examine finite size effects on the optical phonon modes in SrTiO3 thin films. In temperature-dependent measurements we find a near absence of mode softening in the TO1 phonon frequency. Furthermore we see an increase in the soft mode frequency with reduced thickness. Both of these results correlate well with the reduced dielectric response observed for nanoscale ferroelectric systems.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">1</style></issue></record></records></xml>