Experimental observation of non-Abelian topological acoustic semimetals and their phase transitions

B Jiang, A Bouhon, ZK Lin, X Zhou, B Hou, F Li… - Nature Physics, 2021 - nature.com
Topological phases of matter connect mathematical principles to real materials, and may
shape future electronic and quantum technologies. So far, this discipline has mostly focused …

Topological carbon materials: A new perspective

Y Chen, Y Xie, X Yan, ML Cohen, S Zhang - Physics Reports, 2020 - Elsevier
Carbon has numerous one-dimensional (1D), two-dimensional (2D), and three-dimensional
(3D) allotropic structures. The study of carbon materials has long been a major focus of …

Topological acoustic triple point

S Park, Y Hwang, HC Choi, BJ Yang - Nature communications, 2021 - nature.com
Acoustic phonon is a classic example of triple degeneracy point in band structure. This triple
point always appears in phonon spectrum because of the Nambu–Goldstone theorem. Here …

From triple-point materials to multiband nodal links

PM Lenggenhager, X Liu, SS Tsirkin, T Neupert… - Physical Review B, 2021 - APS
We study a class of topological materials which in their momentum-space band structure
exhibit threefold degeneracies known as triple points. Focusing specifically on PT-symmetric …

Impurity-induced triple point fermions in twisted bilayer graphene

A Ramires, JL Lado - Physical Review B, 2019 - APS
Triple point fermions are elusive electronic excitations that generalize Dirac and Weyl
modes beyond the conventional high-energy paradigm. Yet, finding real materials naturally …

Universal higher-order bulk-boundary correspondence of triple nodal points

PM Lenggenhager, X Liu, T Neupert, T Bzdušek - Physical Review B, 2022 - APS
Triple nodal points are degeneracies of energy bands in momentum space at which three
Hamiltonian eigenstates coalesce at a single eigenenergy. For spinless particles, the …

Prediction of threefold fermions in a nearly ideal Dirac semimetal BaAgAs

S Mardanya, B Singh, SM Huang, TR Chang, C Su… - Physical Review …, 2019 - APS
Materials with triply degenerate nodal points in their low-energy electronic spectrum
produce crystalline-symmetry-enforced threefold fermions, which conceptually lie between …

[HTML][HTML] Tuning the band topology of GdSb by epitaxial strain

HS Inbar, DQ Ho, S Chatterjee, AN Engel, S Khalid… - APL Materials, 2023 - pubs.aip.org
Rare-earth monopnictide (RE-V) semimetal crystals subjected to hydrostatic pressure have
shown interesting trends in magnetoresistance, magnetic ordering, and superconductivity …

Coexisting structural phases in the catalytically driven growth of rock salt GdN

A Shaib, F Natali, JR Chan, F Ullstad… - Materials Research …, 2020 - iopscience.iop.org
We present a study of polycrystalline thin films of the rock salt rare earth nitride GdN grown
on amorphous fused silica at ambient temperature with varying N 2 pressure. X-ray …

Ferromagnetic Weyl metal in EuAgP

Y Ge, Y Jin, Z Zhu - Materials Today Physics, 2022 - Elsevier
The combination of band topology with magnetic ordering provides an excellent platform to
realize various magnetic topological phases. Based on first-principle calculations and …