145 citations · 418 across the 14 of their papers we have counts for
14 papers
Quantifying quasiparticle chirality in a chiral topological semimetal
Jiaju Wang, Jaime Sánchez-Barriga, Amit Kumar +17
Recently, the projection of the electron's spin on its crystal momentum has been proposed as a metric to quantify electronic chirality of Bloch states in crystals, which is expecte…
Suppression of Spectral Gap and Flat Bands on a Cuprate Superconductor Side-Surface
Gabriele Domaine, Mihir Date, Sydney K. Y. Dufresne +27
Side surfaces of cuprate superconductors are expected to display a suppressed -wave order parameter and zero-energy topological flat bands with a large density of states, making…
Evidence of a two-dimensional nitrogen crystalline structure on silver surfaces
Xuegao Hu, Haijun Cao, Zhicheng Gao +11
Nitrogen, the most abundant element in Earth's atmosphere, exists as a diatomic gas under standard temperature and pressure. In the two-dimensional (2D) limit, atomically thin nitr…
1D flat bands in phosphorene nanoribbons with pentagonal nature
Shuo Sun, Jing-Yang You, Zhihao Cai +16
Materials with flat bands can serve as a promising platform to investigate strongly interacting phenomena. However, experimental realization of ideal flat bands is mostly limited t…
Realization of a two-dimensional checkerboard lattice in monolayer CuN
Xuegao Hu, Run-Wu Zhang, Da-Shuai Ma +10
Two-dimensional checkerboard lattice, the simplest line-graph lattice, has been intensively studied as a toy model, while material design and synthesis remain elusive. Here, we rep…
Observation of Gapped Dirac Cones in a Two-Dimensional Su-Schrieffer-Heeger Lattice
Daiyu Geng, Hui Zhou, Shaosheng Yue +6
The Su-Schrieffer-Heeger (SSH) model in a two-dimensional rectangular lattice features gapless or gapped Dirac cones with topological edge states along specific peripheries. While…
Exfoliation of 2D van der Waals crystals in ultrahigh vacuum for interface engineering
Zhenyu Sun, Xu Han, Zhihao Cai +11
Two-dimensional (2D) materials and their heterostructures have been intensively studied in recent years due to their potential applications in electronic, optoelectronic, and spint…
Observation of topological flat bands in the kagome semiconductor NbCl
Zhenyu Sun, Hui Zhou, Cuixiang Wang +12
The destructive interference of wavefunctions in a kagome lattice can give rise to topological flat bands (TFBs) with a highly degenerate state of electrons. Recently, TFBs have be…
Observation of one-dimensional Dirac fermions in silicon nanoribbons
Shaosheng Yue, Hui Zhou, Ya Feng +12
Dirac materials, which feature Dirac cones in the reciprocal space, have been one of the hottest topics in condensed matter physics in the past decade. To date, 2D and 3D Dirac Fer…
Observation of quantum spin Hall states in TaPdTe
Xuguang Wang, Daiyu Geng, Dayu Yan +14
Two-dimensional topological insulators (2DTIs), which host the quantum spin Hall (QSH) effect, are one of the key materials in next-generation spintronic devices. To date, experime…
Experimental observation of Dirac cones in artificial graphene lattices
Shaosheng Yue, Hui Zhou, Daiyu Geng +8
Artificial lattices provide a tunable platform to realize exotic quantum devices. A well-known example is artificial graphene (AG), in which electrons are confined in honeycomb lat…
Superconductivity and Fermi Surface Nesting in the Candidate Dirac Semimetal NbC
Dayu Yan, Daiyu Geng, Qiang Gao +18
We report the synthesis of single-crystal NbC, a transition metal carbide with various unusual properties. Transport, magnetic susceptibility, and specific heat measurements demons…
Topological electronic structure in the antiferromagnet HoSbTe
Shaosheng Yue, Yuting Qian, Meng Yang +11
Magnetic topological materials, in which the time-reversal symmetry is broken, host various exotic quantum phenomena, including the quantum anomalous Hall effect, axion insulator s…
Experimental evidence of monolayer AlB with symmetry-protected Dirac cones
Daiyu Geng, Kejun Yu, Shaosheng Yue +13
Monolayer AlB is composed of two atomic layers: honeycomb borophene and triangular aluminum. In contrast with the bulk phase, monolayer AlB is predicted to be a superconduc…