- Accepted Paper
Josephson scanning tunneling spectroscopy in superconducting phases coexisting with pair-, charge-, and spin-density waves
Phys. Rev. B - Accepted 22 July, 2026
DOI: https://doi.org/10.1103/bpgf-f4bg
Phys. Rev. B - Accepted 22 July, 2026
DOI: https://doi.org/10.1103/bpgf-f4bg
We demonstrate that the recent observations of spatial oscillations in the energy position of the superconducting coherence peaks in the cuprate, transition metal dichalcogenide, iron-based and heavy-fermion superconductors are consistent with the possible presence of a pair-, charge- or spindensity-wave phase. We show that for all three cases, the spatial oscillations of the superconducting order parameter, ∆(r) can be imaged via the critical Josephson current, Ic(r) measured in Josephson scanning tunneling spectroscopy experiments. Finally, we show that the spatial oscillations of the density waves and of ∆(r) exhibit relative phase shifts of ∆ϕ = 0 or π for a charge-density wave, and ∆ϕ = π/2 for the spin-density wave.
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