<?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%">Zolnierkiewicz, G.</style></author><author><style face="normal" font="default" size="100%">Szymczak, R.</style></author><author><style face="normal" font="default" size="100%">Blonska-Tabero, A.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Magnetic properties of the Mg2FeV3O11-x site-disordered vanadate</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Non-Crystalline Solids</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2006</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://www.scopus.com/inward/record.uri?eid=2-s2.0-33749526838&amp;doi=10.1016%2fj.jnoncrysol.2006.07.009&amp;partnerID=40&amp;md5=ef3b7a82ba81af523980f8cfc444b038</style></url></web-urls></urls><number><style face="normal" font="default" size="100%">40-41 SPEC. ISS.</style></number><volume><style face="normal" font="default" size="100%">352</style></volume><pages><style face="normal" font="default" size="100%">4179-4182</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The magnetic properties of the Mg2FeV3O11-x ternary vanadate, characterized by disorder between diamagnetic Mg2+ and high-spin Fe3+ ions, are studied using dc magnetization and electron paramagnetic resonance (EPR). The dc susceptibility shows antiferromagnetic interactions between Fe3+ spins with a Curie-Weiss temperature of Θ = -50(1) K, followed by spin-glass-like freezing at Tf ≈ 2.8 K, suggesting significant spin frustration. Temperature-dependent EPR measurements confirm the antiferromagnetic coupling of Fe3+ spins at high temperatures, while a distinct divergence is observed at T ≈ 50 K. This behavior is associated with the formation of spin clusters providing two different energy scales for the magnetic interactions. The magnetic response of Mg2FeV3O11-x is similar to that of the Zn-analogue compound, though the observed differences of the implicated energy scales indicate that magnetic inhomogeneity depends on the extent of cation disorder.</style></abstract><notes><style face="normal" font="default" size="100%">cited By 11</style></notes></record></records></xml>