Fig. 4: Similar behaviors at v = −1 and −2.

a At sufficiently large D, e.g. −0.7 V/nm, both correlated peaks at v = −1 and −2 tend to diminish at low temperature, despite that a weak feature remains at 1.5 K. b Corresponding Hall carrier density at various temperatures. The carrier reset is maximized around 11 K for v = −1 and −2. c Correlated peaks are recovered by in-plane magnetic fields. d Corresponding Hall carrier density at various magnetic fields. The carrier reset at v = −1 cannot be correctly measured above 9 T due to the large gap at v = −2. However, the stronger reset with increasing fields can be identified. Note that the significant energy gap at high fields for v = −2 is probably due to that the gap is spin polarized. e All correlated peaks at v = −1, −2 and −3 are fully suppressed at ultralow temperatures. Inset: Expanded view below 2 K.