122 citations · 302 across the 7 of their papers we have counts for
7 papers
Electron transport in folded bilayer-bilayer graphene/hexagonal boron nitride superlattices under high magnetic fields
Takuya Iwasaki, Motoi Kimata, Yoshifumi Morita +7
Employing graphene as a template, we fabricate moiré superlattices by stacking bilayer or folded bilayer-bilayer graphene (BLG or fBBLG) and hexagonal boron nitride (hBN), i.e., hB…
Topological Valley Currents in Bilayer Graphene/Hexagonal Boron Nitride Superlattices
Kosuke Endo, Katsuyoshi Komatsu, Takuya Iwasaki +8
Graphene superlattices have recently been attracting growing interest as an emergent class of quantum metamaterials. In this paper, we report the observation of nonlocal transport…
Observation of superconductivity in bilayer graphene/hexagonal boron nitride superlattices
Satoshi Moriyama, Yoshifumi Morita, Katsuyoshi Komatsu +9
A class of low-dimensional superconductivity (SC), such as most of "atomic-layer" SCs, has survived only under certain circumstances, implying a role of the substrate. Moreover, in…
Observation of the quantum valley Hall state in ballistic graphene superlattices
K. Komatsu, Y. Morita, E. Watanabe +4
In graphene superlattices, bulk topological currents can lead to long-range charge-neutral flow and non-local resistance near Dirac points. A ballistic version of these phenomena h…
Field-induced Confined States in Graphene
S. Moriyama, Y. Morita, E. Watanabe +1
We report an approach to confine the carriers in single-layer graphene, which leads to quantum devices with field-induced quantum confinement. We demonstrated that the Coulomb-bloc…
Introducing Nonuniform Strain to Graphene Using Dielectric Nanopillars
Hikari Tomori, Akinobu Kanda, Hidenori Goto +5
A method for inducing nonuniform strain in graphene films is developed. Pillars made of a dielectric material (electron beam resist) are placed between graphene and the substrate,…