Experimental perspective on three-dimensional topological semimetals

BQ Lv, T Qian, H Ding - Reviews of Modern Physics, 2021 - APS
Topological semimetals (TSMs) are characterized by bulk band crossings in their electronic
structures, which are expected to give rise to gapless electronic excitations and topological …

Weyl, Dirac and high-fold chiral fermions in topological quantum matter

MZ Hasan, G Chang, I Belopolski, G Bian… - Nature Reviews …, 2021 - nature.com
Quantum materials hosting Weyl fermions have opened a new era of research in condensed
matter physics. First proposed in 1929 in the context of particle physics, Weyl fermions have …

Topological materials discovery from crystal symmetry

BJ Wieder, B Bradlyn, J Cano, Z Wang… - Nature Reviews …, 2022 - nature.com
Topological materials discovery has evolved at a rapid pace over the past 15 years following
the identification of the first nonmagnetic topological insulators (TIs), topological crystalline …

Van Hove annihilation and nematic instability on a kagome lattice

YX Jiang, S Shao, W Xia, MM Denner, J Ingham… - Nature Materials, 2024 - nature.com
A nematic phase breaks the point-group symmetry of the crystal lattice and is known to
emerge in correlated materials. Here we report the observation of an intra-unit-cell nematic …

Two-dimensional natural hyperbolic materials: from polaritons modulation to applications

G Jia, J Luo, H Wang, Q Ma, Q Liu, H Dai, R Asgari - Nanoscale, 2022 - pubs.rsc.org
Natural hyperbolic materials (HMs) in two dimensions (2D) have an extraordinarily high
anisotropy and a hyperbolic dispersion relation. Some of them can even sustain hyperbolic …

Discovery and facile synthesis of a new silicon based family as efficient hydrogen evolution reaction catalysts: a computational and experimental investigation of metal …

Y He, TL Wang, M Zhang, TW Wang, LF Wu, L Zeng… - Small, 2021 - Wiley Online Library
A new family of transition‐metal monosilicides (MSi, M= Ti, Mn, Fe, Ru, Ni, Pd, Co, and Rh)
electrocatalysts with superior electrocatalytic performance of hydrogen evolution is reported …

Two-dimensional nodal-loop half-metal in monolayer MnN

SS Wang, ZM Yu, Y Liu, Y Jiao, S Guan, XL Sheng… - Physical Review …, 2019 - APS
Two-dimensional (2D) materials with nodal-loop band crossing have been attracting great
research interest. However, it remains a challenge to find 2D nodal loops that are robust …

Infrared plasmons propagate through a hyperbolic nodal metal

Y Shao, AJ Sternbach, BSY Kim, AA Rikhter, X Xu… - Science …, 2022 - science.org
Metals are canonical plasmonic media at infrared and optical wavelengths, allowing one to
guide and manipulate light at the nanoscale. A special form of optical waveguiding is …

Observation of Magnetism-Induced Topological Edge State in Antiferromagnetic Topological Insulator MnBi4Te7

HK Xu, M Gu, F Fei, YS Gu, D Liu, QY Yu, SS Xue… - ACS …, 2022 - ACS Publications
Breaking time reversal symmetry in a topological insulator may lead to quantum anomalous
Hall effect and axion insulator phase. MnBi4Te7 is a recently discovered antiferromagnetic …

Hourglass Weyl loops in two dimensions: Theory and material realization in monolayer GaTeI family

W Wu, Y Jiao, S Li, XL Sheng, ZM Yu, SA Yang - Physical Review Materials, 2019 - APS
Nodal loops in two-dimensional (2D) systems are typically vulnerable against spin-orbit
coupling (SOC). Here, we explore 2D systems with a type of doubly degenerate nodal loops …