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VERSION:2.0
PRODID:Icfo
X-PUBLISHED-TTL:P1W
BEGIN:VEVENT
UID:6a1d35e2797bc
DTSTART:20260618T100000Z
SEQUENCE:0
TRANSP:OPAQUE
DTEND:20260618T110000Z
LOCATION:Seminar Room
SUMMARY:ICFO | ERIC SEEWALD
CLASS:PUBLIC
DESCRIPTION:Rhombohedral graphene (rG) aligned with hexagonal boron nitride
  (hBN) has been shown to host flat bands that stabilize various strongly c
 orrelated quantum phases\, including Mott insulators\, integer\, and fract
 ional quantum anomalous Hall phases. In this work\, we use scanning tunnel
 ing microscopy/spectroscopy (STM/STS) to visualize the dispersion of flat 
 bands with doping and applied displacement fields in a hBN-aligned rhomboh
 edral trilayer graphene (rtG)/hBN moir&eacute\; superlattice. In addition 
 to the intrinsic flat bands of rtG induced by the displacement field\, we 
 observe low-energy features originating from moir&eacute\; potential-induc
 ed band folding. Real-space variations of the spectroscopic features allow
  us to quantify the spatial structure of the moir&eacute\; potential at th
 e rtG/hBN interface. Importantly\, we find that accurately capturing the m
 oir&eacute\; site-dependent spectra requires incorporating a moir&eacute\;
  potential acting on the top graphene layer with a sign opposite to that o
 f the bottom layer into the continuum model. Our results thus provide key 
 experimental and theoretical insights into understanding the role of the m
 oire superlattice in rG/hBN heterostructures.
DTSTAMP:20260601T073354Z
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