1.1k citations · 9.1k across the 61 of their papers we have counts for
9 papers · 1 filter
Weyl Semimetals with symmetry
Yuting Qian, Jiacheng Gao, Zhida Song +4
In the time-reversal-breaking centrosymmetric systems, the appearance of Weyl points can be guaranteed by an odd number of all the even/odd parity occupied bands at eight inversion…
New types of topological superconductors under local magnetic symmetries
Jinyu Zou, Qing Xie, Zhida Song +1
We classify gapped topological superconducting (TSC) phases of one-dimensional quantum wires with local magnetic symmetries (LMSs), in which the time-reversal symmetry $\mathcal{T}…
Topological metals induced by Zeeman effect
Song Sun, Zhida Song, Hongming Weng +1
In the present paper, we propose a new way to classify centrosymmetric metals by studying the Zeeman effect caused by an external magnetic field described by the momentum dependent…
Real Space Invariants: Twisted Bulk-Boundary Correspondence of Fragile Topology
Zhi-Da Song, Luis Elcoro, B. Andrei Bernevig
In this paper, we propose a new type of bulk-boundary correspondence as a generic approach to theoretically and experimentally detect fragile topological states. When the fragile p…
Experimental characterization of fragile topology in an acoustic metamaterial
Valerio Peri, Zhi-Da Song, Marc Serra-Garcia +7
Symmetries crucially underlie the classification of topological phases of matter. Most materials, both natural as well as architectured, possess crystalline symmetries. Recent theo…
Topology-Bounded Superfluid Weight In Twisted Bilayer Graphene
Fang Xie, Zhida Song, Biao Lian +1
While regular flat bands are good for enhancing the density of states and hence the gap, they are detrimental to the superfluid weight. We show that the predicted nontrivial topolo…
Fragile Phases As Affine Monoids: Classification and Material Examples
Zhida Song, L. Elcoro, Nicolas Regnault +1
Topological phases in electronic structures contain a new type of topology, called fragile, which can arise, for example, when an Elementary Band Representation (Atomic Limit Band)…
Higher-order Topology of Axion Insulator EuInAs
Yuanfeng Xu, Zhida Song, Zhijun Wang +2
Based on first-principles calculations and symmetry analysis, we propose that EuInAs is a long awaited axion insulator with antiferromagnetic (AFM) long range order. Charac…
Hear the Sound of Weyl Fermions
Zhida Song, Xi Dai
Quasiparticles and collective modes are two fundamental aspects that characterize a quantum matter in addition to its ground state features. For example, the low energy physics for…