Extended Data Fig. 3: Raw images and FFT filtering of the dI/dV maps for the generalized Wigner crystal states.

a, Raw dI/dV map of the n = 2/3 state. b, FFT image of a. c, Real space dI/dV map after FFT filtering of a. In the filtering process, we removed the Fourier components within the six red circles indicated in b. This FFT filtering suppresses the periodic feature associated with the moiré superlattice. d, FFT image of c. e, Raw dI/dV map of the n = 1/3 state. f, FFT image of e. g, Real space dI/dV map after FFT filtering of e. The Fourier components within the red circles shown in f have been filtered out. h, FFT image of g. i, Raw dI/dV map of the n = 1/2 state. j, FFT image of i. k, Real-space dI/dV map after FFT filtering of i. The Fourier components within the red circles shown in j have been filtered out. l, FFT image of k.