Extended Data Fig. 3: Non-dispersive PDW and absence of PDW in high energy dI/dV maps.
From: Pair density wave state in a monolayer high-Tc iron-based superconductor
a, The STM topography of the domain wall D3 shown in Fig. 4. b, The bias dependence of the wavevector of the LDOS modulation at the domain wall. c,d, dI/dV map (c) taken at 80 mV over the same FOV of a and corresponding magnitude of the Fourier transform (d). There is no spatial modulation in the dI/dV map (c) and no FFT peak at around Q ≈ 0.28QFe at the energy much higher than the superconducting gap (d). e,f, Spatial variation of the amplitude (e) and phase (f) of the LDOS modulation at bias voltage from 0 to 14 mV. The averaging length scales in e and f are denoted by dashed circles. The LDOS modulations mainly exist in the energies within the superconducting gap, which is also observed at domain wall D2 (Supplementary Fig. 13). Dashed lines in a,c,e and f mark the edges of the domain wall.
