346 citations
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17 papers · 1 filter
Programmable, Spontaneous Superlattice Memory in a Monolayer Topological Insulator
Jian Tang, Thomas Siyuan Ding, Shuhan Ding +24
Memory is a foundational concept across disciplines, from neurobiology and electronics to artificial intelligence and quantum gravity. In materials, memory effects typically arise…
Observation of moiré trapped biexciton through sub-diffraction-limit probing using hetero-bilayer on nanopillar
Mayank Chhaperwal, Suman Chatterjee, Suchithra Puliyassery +6
The ability to tune the degree of interaction among particles at the nanoscale is highly intriguing. The spectroscopic signature of such interaction is often subtle and requires sp…
Topological advantage for adsorbate chemisorption on conjugated chains
Raphael F. Ribeiro, Luis Martinez-Gomez
Topological matter offers opportunities for control of charge and energy flow with implications for chemistry still incompletely understood. In this work, we study an ensemble of a…
Higher-order Topological Knots and the classification of non-Hermitian lattices under symmetry
Yifan Wang, Wladimir A. Benalcazar
In two dimensions, Hermitian lattices with non-zero Chern numbers and non-Hermitian lattices with a higher-order skin effect (HOSE) bypass the constraints of the Nielsen-Ninomiya n…
Higher-Order Van Hove Singularities in Kagome Topological Bands
Edrick Wang, Lakshmi Pullasseri, Luiz H. Santos
Motivated by the growing interest in band structures featuring higher-order Van Hove singularities (HOVHS), we investigate a spinless fermion kagome system characterized by nearest…
Higher-order Skin Effect through a Hermitian-non-Hermitian Correspondence and Its Observation in an Acoustic Kagome Lattice
Jia-Xin Zhong, Pedro Fittipaldi de Castro, Tianhong Lu +8
The non-Hermitian skin effect (NHSE) is a distinctive topological phenomenon observed in nonHermitian systems. Recently, there has been considerable interest in exploring higher-or…