Universal breakdown of Kibble-Zurek scaling in fast quenches across a phase transition

HB Zeng, CY Xia, A Del Campo - Physical Review Letters, 2023 - APS
The crossing of a continuous phase transition gives rise to the formation of topological
defects described by the Kibble-Zurek mechanism (KZM) in the limit of slow quenches. The …

Experimental realization of two-dimensional weak topological insulators

H Yang, L Song, Y Cao, P Yan - Nano Letters, 2022 - ACS Publications
We report the experimental realization of a two-dimensional (2D) weak topological insulator
(WTI) in spinless Su–Schrieffer–Heeger circuits with parity–time and chiral symmetries …

Klein-bottle quadrupole insulators and Dirac semimetals

CA Li, J Sun, SB Zhang, H Guo, B Trauzettel - Physical Review B, 2023 - APS
The Benalcazar-Bernevig-Hughes (BBH) quadrupole insulator model is a cornerstone
model for higher-order topological phases. It requires π-flux threading through each …

Topological phases in photonic microring lattices with projective symmetry

Y Liu, C Jiang, W Wen, Y Song, X Li, P Lu, S Ke - Physical Review A, 2024 - APS
Symmetry plays a key role in classifying topological phases, which can be enriched by the
projective symmetry group in the presence of artificial gauge fields (AGFs). Here, we utilize …

Emerging topological multiferroics from the 2D Rice-Mele model

P Vergara, G Sáez, M Castro, S Allende… - npj 2D Materials and …, 2024 - nature.com
We introduce a two-dimensional dimerized lattice model that reveals a remarkable feature:
the emergence of a complex, non-trivial topological multiferroic phase marked by zero Berry …

Boundary-induced topological transition in an open Su-Schrieffer-Heeger model

A Bissonnette, N Delnour, A Mckenna, H Eleuch… - Physical Review B, 2024 - APS
We consider a Su-Schrieffer-Heeger (SSH) chain to each end of which we attach a semi-
infinite undimerized chain (lead). We study the effect of the openness of the SSH model on …

Heavy-boundary mode patterning and dynamics of topological phonons in polymer chains and supramolecular lattices on surfaces

JD Cojal González, J Rondomanski, K Polthier… - Nature …, 2024 - nature.com
In topological band theory, phonon boundary modes consequence of a topologically non-
trivial band structure feature desirable properties for atomically-precise technologies, such …

Cataloging topological phases of stacked Su-Schrieffer-Heeger chains by a systematic breaking of symmetries

A Agrawal, JN Bandyopadhyay - Physical Review B, 2023 - APS
Two-dimensional (2D) model of a weak topological insulator with an N stacked Su-Schrieffer-
Heeger chain is studied. This study starts with a basic model with all the fundamental …

Twofold topological phase transitions induced by third-nearest-neighbor hoppings in one-dimensional chains

Y Betancur-Ocampo, B Manjarrez-Montañez… - Physical Review B, 2024 - APS
Strong long-range hoppings up to third-nearest neighbors may induce a topological phase
transition in one-dimensional chains. Unlike the Su-Schrieffer-Heeger model, this transition …

Tunable Dirac points in a two-dimensional non-symmorphic wallpaper group lattice

MAJ Herrera, D Bercioux - Communications Physics, 2023 - nature.com
Non-symmorphic symmetries protect Dirac nodal lines and cones in lattice systems. Here,
we investigate the spectral properties of a two-dimensional lattice belonging to a non …