期刊
JOURNAL OF PHYSICS-CONDENSED MATTER
卷 15, 期 36, 页码 6285-6300出版社
IOP PUBLISHING LTD
DOI: 10.1088/0953-8984/15/36/315
关键词
-
We study the interplay between anti ferromagnetism and superconductivity in a generalized infinite-U Anderson lattice, where both superconductivity and antiferromagnetic order are introduced phenomenologically in mean field theory. In a certain regime, a quantum phase transition is found which is characterized by an abrupt expulsion of magnetic order by d-wave superconductivity, as externally applied pressure increases. This transition takes place when the d-wave superconducting critical temperature, T-c, intercepts the magnetic critical temperature, T-m, under increasing pressure. Calculations of the quasiparticle bands and density of states in the ordered phases are presented. We calculate the optical conductivity sigma (omega) in the clean limit. It is shown that, when the temperature drops below T-m, a double peak structure develops in sigma (omega).
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据