123 citations · 273 across the 12 of their papers we have counts for
12 papers
Structural and electronic signatures of strain-tunable marginally twisted bilayer graphene
Pei Ouyang, Jiawei Yu, Qian Li +11
Marginally twisted bilayer graphene having small twist angles is predicted to exhibit unique structural and electronic properties, though experimental characterization remains limi…
Giant Rashba splitting in PtTe/PtTe heterostructure
Runfa Feng, Yang Zhang, Jiaheng Li +11
Achieving a large spin splitting is highly desirable for spintronic devices, which often requires breaking of the inversion symmetry. However, many atomically thin films are centro…
Correlated topological flat bands in rhombohedral graphite
Hongyun Zhang, Qian Li, Michael G. Scheer +22
Flat bands and nontrivial topological physics are two important topics of condensed matter physics. With a unique stacking configuration analogous to the Su-Schrieffer-Heeger (SSH)…
Strain and twist angle driven electronic structure evolution in twisted bilayer graphene
Jiawei Yu, Guihao Jia, Qian Li +14
In twisted bilayer graphene (TBG) devices, local strains frequently coexist and intertwine with the twist-angle-dependent moiré superlattice, significantly influencing the electron…
Observation of dichotomic field-tunable electronic structure in twisted monolayer-bilayer graphene
Hongyun Zhang, Qian Li, Youngju Park +18
Twisted bilayer graphene (tBLG) provides a fascinating platform for engineering flat bands and inducing correlated phenomena. By designing the stacking architecture of graphene lay…
Evolution of flat band and role of lattice relaxations in twisted bilayer graphene
Qian Li, Hongyun Zhang, Yijie Wang +15
Magic-angle twisted bilayer graphene (MATBG) exhibits correlated phenomena such as superconductivity and Mott insulating state related to the weakly dispersing flat band near the F…
Population inversion and Dirac fermion cooling in 3D Dirac semimetal CdAs
Changhua Bao, Qian Li, Sheng Xu +8
Revealing the ultrafast dynamics of three-dimensional (3D) Dirac fermions upon photoexcitation is critical for both fundamental science and device applications. So far, how the coo…
Spatially-resolved electronic structure of stripe domains in IrTe through electronic structure microscopy
Changhua Bao, Hongyun Zhang, Qian Li +11
Phase separation in the nanometer- to micrometer-scale is characteristic for correlated materials, for example, high temperature superconductors, colossal magnetoresistance mangani…
Experimental evidence of plasmarons and effective fine structure constant in electron-doped graphene/h-BN heterostructure
Hongyun Zhang, Shuopei Wang, Eryin Wang +13
Electron-electron interaction is fundamental in condensed matter physics and can lead to composite quasiparticles called plasmarons, which strongly renormalize the dispersion and c…
Coexistence of extended flat band and Kekulé order in Li-intercalated graphene
Changhua Bao, Hongyun Zhang, Xi Wu +6
Doping graphene near the 1/4 filling to shift the extended flat band and van Hove singularity below E has been highly desirable. Here we report the experimental observation of…
Experimental evidence of chiral symmetry breaking in Kekulé-ordered graphene
Changhua Bao, Hongyun Zhang, Teng Zhang +13
The low-energy excitations of graphene are relativistic massless Dirac fermions with opposite chiralities at valleys K and K'. Breaking the chiral symmetry could lead to gap openin…
Self-energy dynamics and mode-specific phonon threshold effect in a Kekulé-ordered graphene
Hongyun Zhang, Changhua Bao, Michael Schüler +7
Electron-phonon interaction and related self-energy are fundamental to both the equilibrium properties and non-equilibrium relaxation dynamics of solids. Although electron-phonon i…