Wang-MacDonald d-Wave Vortex Cores Observed in Heavily Overdoped Bi_{2}Sr_{2}CaCu_{2}O_{8+δ}

Low-magnetic-field scanning tunneling spectroscopy of individual Abrikosov vortices in heavily overdoped Bi_{2}Sr_{2}CaCu_{2}O_{8+δ} unveils a clear d-wave electronic structure of the vortex core, with a zero-bias conductance peak at the vortex center that splits with increasing distance from the co...

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Bibliographic Details
Published in:Physical review. X 2021-08, Vol.11 (3), p.031040
Main Authors: Tim Gazdić, Ivan Maggio-Aprile, Genda Gu, Christoph Renner
Format: Article
Language:English
Online Access:Get full text
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Summary:Low-magnetic-field scanning tunneling spectroscopy of individual Abrikosov vortices in heavily overdoped Bi_{2}Sr_{2}CaCu_{2}O_{8+δ} unveils a clear d-wave electronic structure of the vortex core, with a zero-bias conductance peak at the vortex center that splits with increasing distance from the core. We show that previously reported unconventional electronic structures, including the low-energy checkerboard charge order in the vortex halo and the absence of a zero-bias conductance peak at the vortex center, are direct consequences of short intervortex distance and consequent vortex-vortex interactions prevailing in earlier experiments.
ISSN:2160-3308
DOI:10.1103/PhysRevX.11.031040