Normal-state magnetic susceptibility in a bilayer cuprate

Details Normal-state magnetic susceptibility in a bilayer cuprate Normal-state magnetic susceptibility in a bilayer cuprate

1997-04-09

arxiv.org/abs/cond-mat/9704081v1

Physics

Condensed Matter

5 pages, 2 figures

Scientific paper

10.1103/PhysRevB.56.R2952

The magnetic susceptibility of high-T_c superconductors is investigated in the normal state using a coupled bilayer model. While this model describes in a natural way the normal-state pseudogaps seen in c-axis optical conductivity on underdoped samples, it predicts a weakly increasing susceptibility with decreasing temperature and cannot explain the magnetic pseudogaps exhibited in NMR measurements. Our result, together with some experimental evidence suggest that the mechanism governing the c-axis optical pseudogap is different from that for the $a-b$ plane magnetic pseudogap.

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