<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Guan, W. Y.</style></author><author><style face="normal" font="default" size="100%">Xu, Y. H.</style></author><author><style face="normal" font="default" size="100%">Sheen, S. R.</style></author><author><style face="normal" font="default" size="100%">Y. C. Chen</style></author><author><style face="normal" font="default" size="100%">Wei, J. Y. T.</style></author><author><style face="normal" font="default" size="100%">Lai, HF</style></author><author><style face="normal" font="default" size="100%">Wu, M. K.</style></author><author><style face="normal" font="default" size="100%">Ho, J. C.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">ION-SIZE EFFECT ON TN IN (R1-XPRX)BA2CU3O7-Y SYSTEMS (R=LU, YB, TM, ER, Y, HO, DY, GD, EU, SM, AND ND)</style></title><secondary-title><style face="normal" font="default" size="100%">Physical Review B</style></secondary-title><short-title><style face="normal" font="default" size="100%">ION-SIZE EFFECT ON TN IN (R1-XPRX)BA2CU3O7-Y SYSTEMS (R=LU, YB, TM, ER, Y, HO, DY, GD, EU, SM, AND ND)</style></short-title></titles><dates><year><style  face="normal" font="default" size="100%">1994</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Jun 1</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">&lt;Go to ISI&gt;://WOS:A1994NR70100063</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">49</style></volume><pages><style face="normal" font="default" size="100%">15993-15999</style></pages><isbn><style face="normal" font="default" size="100%">0163-1829</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 conducted a detailed study of the structure and magnetic properties of (R1-xPrx)Ba2Cu3O7 sintered samples, where R = Lu, Yb, Tm, Er, Y, Ho, Dy, Gd, Eu, Sm, and Nd for x = 0.5-1.0. We found that the temperature dependence of the dc susceptibility follows the Curie-Weiss law in the temperature range 20-300 K and the paramagnetism of the Pr and R sublattices exist independently of one another. The antiferromagnetic ordering temperature T(N) of Pr ions decreases monotonically with increasing R concentration (1-x). At a given x, T(N) is R-ion-size dependent. The slope in the T(N) vs x curve is steeper for ions with smaller ionic radii. The observed results are interpreted in terms of the hybridization between the local states of the Pr ion and the valence-band states of the CuO2 planes.&lt;/p&gt;
</style></abstract><accession-num><style face="normal" font="default" size="100%">WOS:A1994NR70100063</style></accession-num><notes><style face="normal" font="default" size="100%">&lt;p&gt;Times Cited: 52&lt;/p&gt;
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