397 citations · 1.2k across the 11 of their papers we have counts for
11 papers
Interplay between topology and correlations in the second moiré band of twisted bilayer MoTe2
Fan Xu, Xumin Chang, Jiayong Xiao +17
Topological flat bands formed in two-dimensional lattice systems offer unique opportunity to study the fractional phases of matter in the absence of an external magnetic field. Cel…
Tunable superconductivity in electron- and hole-doped Bernal bilayer graphene
Chushan Li, Fan Xu, Bohao Li +11
Graphene-based, high quality two-dimensional electronic systems have emerged as a highly tunable platform for studying superconductivity. Specifically, superconductivity has been o…
Observation of integer and fractional quantum anomalous Hall effects in twisted bilayer MoTe2
Fan Xu, Zheng Sun, Tongtong Jia +13
The interplay between strong correlations and topology can lead to the emergence of intriguing quantum states of matter. One well-known example is the fractional quantum Hall effec…
A new flavor of correlation and superconductivity in small twist-angle trilayer graphene
Phum Siriviboon, Jiang-Xiazi Lin, Xiaoxue Liu +8
When layers of graphene are rotationally misaligned by the magic angle, the moiré superlattice features extremely flat bands. Due to the enhanced density of states, the Coulomb int…
Coulomb screening and thermodynamic measurements in magic-angle twisted trilayer graphene
Xiaoxue Liu, Naiyuan James Zhang, K. Watanabe +2
The discovery of magic-angle twisted trilayer graphene (tTLG) adds a new twist to the family of graphene moiré. The additional graphene layer unlocks a series of intriguing propert…
Isospin Pomeranchuk effect and the entropy of collective excitations in twisted bilayer graphene
Yu Saito, Fangyuan Yang, Jingyuan Ge +6
In condensed matter systems, higher temperatures typically disfavors ordered phases leading to an upper critical temperature for magnetism, superconductivity, and other phenomena.…
Tuning electron correlation in magic-angle twisted bilayer graphene using Coulomb screening
Xiaoxue Liu, Zhi Wang, K. Watanabe +3
The ability to control the strength of interaction is essential for studying quantum phenomena emerging from a system of correlated fermions. For example, the isotope effect illust…
Thermopower and Nernst measurements in a half-filled lowest Landau level
Xiaoxue Liu, Tingxin Li, Po Zhang +4
Motivated by recent proposal by Potter et al. [Phys. Rev. X 6, 031026 (2016)] concerning possible thermoelectric signatures of Dirac composite fermions, we perform a systematic exp…
Tuning Edge States in Strained-Layer InAs/GaInSb Quantum Spin Hall Insulators
Lingjie Du, Tingxin Li, Wenkai Lou +8
We report on a class of quantum spin Hall insulators (QSHIs) in strained-layer InAs/GaInSb quantum wells, in which the bulk gaps are enhanced by up to five folds as compared to the…
Observation of a Helical Luttinger-Liquid in InAs/GaSb Quantum Spin Hall Edges
Tingxin Li, Pengjie Wang, Hailong Fu +8
We report on the observation of a helical Luttinger-liquid in the edge of InAs/GaSb quantum spin Hall insulator, which shows characteristic suppression of conductance at low temper…
De-Pinning Transition of Bubble Phases in a High Landau Level
Xuebin Wang, Hailong Fu, Lingjie Du +6
While in the lowest Landau level the electron-electron interaction leads to the formation of the Wigner crystal, in higher Landau levels a solid phase with multiple electrons in a…