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arXiv · 1203.5163

Transport Measurements on Nano-engineered Two Dimensional Superconducting Wire Networks

W. J. Zhang·S. K. He·H. Xiao·G. M. Xue·Z. C. Wen·X. F. Han·S. P. Zhao·C. Z. Gu·X. G. Qiu
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Abstract

Superconducting triangular Nb wire networks with high normal-state resistance are fabricated by using a negative tone hydrogen silsesquioxane (HSQ) resist. Robust magnetoresistance oscillations are observed up to high magnetic fields and maintained at low temperatures, due to the eective reduction of wire dimensions. Well-defined dips appear at integral and rational values (1/2, 1/3, 1/4) of the reduced flux f = Phi/Phi_0, which is the first observation in the triangular wire networks. These results are well consistent with theoretical calculations for the reduced critical temperature as a function of f.

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W. J. Zhang, S. K. He, H. Xiao, G. M. Xue, Z. C. Wen, X. F. Han, S. P. Zhao, C. Z. Gu, X. G. Qiu. 2012-03-23. Transport Measurements on Nano-engineered Two Dimensional Superconducting Wire Networks. https://doi.org/10.1016/j.physc.2012.05.009

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