Most studies on moiré superlattices formed from a stack of h-BN (two-dimensional hexagonal boron nitride) and graphene have focused on single layer graphene; graphene with multiple layers is less understood. Here, we show that a moiré superlattice of multilayer graphene shows features arising from the anisotropic Fermi surface affected by the superlattice structure. The moiré superlattice of a h-BN/AB-stacked tetralayer graphene heterostructures exhibited resistivity peaks showing a complicated dependence on the perpendicular electric field. The peaks were not due to secondary Dirac cones forming, but rather opening of the energy gap due to folding of the anisotropic Fermi surface. In addition, superlattice peaks resulted from mixing of light- and heavy-mass bilayer-like bands via the superlattice potential. The gaps did not open on the boundary of the superlattice Brillouin zone, but rather opened inside it, which reflected the anisotropy of the Fermi surface of multilayer graphene.

由h -BN（二维六方氮化硼）和石墨烯堆叠形成的莫尔超晶格的大多数研究都集中在单层石墨烯上。多层石墨烯的了解较少。在这里，我们显示出多层石墨烯的莫尔超晶格显示出由受超晶格结构影响的各向异性费米表面所引起的特征。h的莫尔超晶格-BN / AB堆叠的四层石墨烯异质结构显示出电阻率峰，表明其对垂直电场的复杂依赖性。该峰不是由于二次狄拉克锥的形成，而是由于各向异性费米表面的折叠而导致的能隙的打开。另外，超晶格峰是通过超晶格势将轻质和重质双层样带混合而产生的。缝隙不在超晶格布里渊区的边界上打开，而是在其内部打开，这反映了多层石墨烯费米表面的各向异性。