<?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%">Guskos, N.</style></author><author><style face="normal" font="default" size="100%">V. Likodimos</style></author><author><style face="normal" font="default" size="100%">Typek, J.</style></author><author><style face="normal" font="default" size="100%">Wabia, M.</style></author><author><style face="normal" font="default" size="100%">Fuks, H.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Cluster formation in oxygen-deficient La0.5Yb0.5Ba2Cu3Oy</style></title><secondary-title><style face="normal" font="default" size="100%">Radiation Effects and Defects in Solids</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1999</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://www.scopus.com/inward/record.uri?eid=2-s2.0-0033281459&amp;doi=10.1080%2f10420159908245946&amp;partnerID=40&amp;md5=79b2079c649172778681c5f0105b6c9f</style></url></web-urls></urls><number><style face="normal" font="default" size="100%">1</style></number><volume><style face="normal" font="default" size="100%">151</style></volume><pages><style face="normal" font="default" size="100%">121-129</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The EPR spectra of the oxygen-deficient La0.5Yb0.5Ba2Cu3Oy mixed phase has been investigated as a function of temperature. At low temperatures (T&amp;lt;15 K), an intense EPR line indicating the presence of magnetic clusters associated with spin-polarized clusters of copper ions through delocalized oxygen holes, has been detected. Both the EPR linewidth and g-factor of the latter EPR spectrum exhibit strong temperature dependence indicative of short-range order effects. At higher temperatures (T&amp;gt;30 K), the EPR spectrum reveal the contribution of Cu2+ defects and a broad EPR spectrum due to Yb3+ ions which is compared with the corresponding one in Y0.5Yb0.5Ba2Cu3Oy compounds.</style></abstract><notes><style face="normal" font="default" size="100%">cited By 0</style></notes></record></records></xml>