Detecting competing orders through the edge states in the heterostructures with high-Tc superconductors

Abstract

Considering a $d$-wave superconductor being in proximity to a two-dimensional Weyl model, a topological superconductor with gapless edge states may be realized. We here demonstrate that the system can become topologically trivial when an additional d-density-wave order is also included. The edge states become gapped and may be detected in experiments. For this, the d-density-wave order can be detected experimentally, so that different scenarios for the pseudogap in high-T${}_c$ superconductors may be distinguished. Moreover, this method may be used to detect various hidden orders through putting high-T${}_c$ superconductors being in proximity to various topological nontrivial materials.

5 pages, 5 figures

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Cited by in corpus (4)

• Detection of second-order topological superconductors by Josephson junctions
• Superconductivity-driven magnetization modulation in YBa2Cu3O7-δ /SrTiO3/La0.67Sr0.33MnO3 heterostructures
• Higher order topological state induced by $d$-wave competing orders in high-T${}_c$ superconductor based heterostructure
• Corner Flat Bands Induced by $d$-Density Wave and Partial Corner State Modification Due to Competition with $d$-Wave Superconductivity