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Surface Junction in Bi$_2$Sr$_2$CaCu$_2$O$_{8+d}$ Single Crystals

L. X. You·P. H. Wu
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Abstract

As nature junction geometry of the d-wave cuprate superconductor/insulator/the mixture of s-wave and d-wave cuprate superconductor, the upmost surface junction of intrinsic Josephson junction stack fabricated on Bi$_2$Sr$_2$CaCu$_2$O$_{8+d}$ single crystals was measured and discussed. We successfully observed half-integral microwave induced steps as well as integral steps with resistively shunting technology, which shows the evidence of second order supercurrent, consistent with Tanaka's theory.

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L. X. You, P. H. Wu. 2003-05-17. Surface Junction in Bi$_2$Sr$_2$CaCu$_2$O$_{8+d}$ Single Crystals. https://arxiv.org/abs/cond-mat/0305409

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