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Effects of the CuO chains on the anisotropic penertration depth of YBa2Cu4O8

Christos Panagopoulos·Jeffery L Tallon·Tao Xiang
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Abstract

The temperatuer dependence of the magnetic penetration depth of grain aligned YBa2Cu4O8 has been measured along the ab plane and c-axis. Both $λ_ab$ and $λ_c$ vary as \sqrt{T} up to 0.4Tc implying a square root density of states at low energy. The results are discussed in terms of a proximity model of alternating stacked superconducting and normal layers

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Christos Panagopoulos, Jeffery L Tallon, Tao Xiang. 1998-12-23. Effects of the CuO chains on the anisotropic penertration depth of YBa2Cu4O8. https://arxiv.org/abs/cond-mat/9812333

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