Estimation of the Doping Dependence of Antiferromagnetism in the Copper Oxide Material
Shiping Feng, Yun Song, Zhongbing Huang
Abstract
Within the t-J model, we study the doping dependence of antiferromagnetism in the copper oxide materials by considering quantum fluctuations of spinons in the random-phase-approximation. The staggered magnetization vanishes around doping δ=5% for a reasonable parameter value t/J=5, which is in agreement with the experiments on copper oxide materials.
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