6 papers
Superconductivity near quarter and half filling of a strongly correlated triangular Hubbard band in twisted trilayer WSe2
Yungi Jeong, Kenji Watanabe, Takashi Taniguchi +1
The triangular-lattice Hubbard model is one of the paradigmatic settings for studying correlated electronic systems with geometric frustration that can give rise to a variety of ph…
Evidence for electron localisation in a moiré-of-moiré superlattice
Hangyeol Park, Junhyeok Oh, Rasoul Ghadimi +7
The localisation of electrons in a lattice potential is an quantum-mechanical phenomenon and is often associated with remarkable physical properties of solids involving electron sp…
Local thermodynamic DOS measurement and twist-angle mapping in graphene-hBN superlattices
Namkyung Lee, Hangyeol Park, Seungwon Jung +3
Moiré patterns arising from twisted van der Waals stacks fundamentally reshape their electronic properties, enabling band-structure engineering that has driven rapidly growing int…
Interaction of moire-induced quantum Hall channels in a locally gated graphene junction
Won Beom Choi, Myungjin Jeon, K. Watanabe +2
Manipulating electron quantum 1D channels is an important element in the field of quantum information due to their ballistic and phase coherence properties. In GaAs and graphene ba…
Cryogen-free variable-temperature Kelvin probe force microscopy for probing local chemical potential in a graphene heterostructure
Namkyung Lee, Seungwon Jung, Baeksan Jang +2
We report the development of a variable-temperature Kelvin probe force microscopy (KPFM) system capable of stable and highly sensitive operation over a wide temperature range based…
Interplay of canted antiferromagnetism and nematic order in Mott insulating Sr2Ir1-xRhxO4
Hyeokjun Heo, Jeongha An, Junyoung Kwon +4
Sr2IrO4 is one of the prime candidates for realizing exotic quantum spin orders owing to the subtle combination of spin-orbit coupling and electron correlation. Sensitive local mag…