169 citations · 991 across the 32 of their papers we have counts for
6 papers · 1 filter
Topological Reality Switch: Towards Bulk-Boundary Selective Lasing
Sayed Ali Akbar Ghorashi, Masatoshi Sato
The emergence of complex spectra in non-Hermitian systems causes dramatic changes even under weak perturbations, significantly hindering their precise control for study and integra…
Majoranas with a twist: Tunable Majorana zero modes in altermagnetic heterostructures
Andreas Hadjipaschalis, Sayed Ali Akbar Ghorashi, Jennifer Cano
Altermagnetism provides new routes to realize Majorana zero modes with vanishing net magnetization. We consider a recently proposed heterostructure consisting of a semiconducting w…
Quantum-geometric dipole: a topological boost to flavor ferromagnetism in flat bands
Lei Chen, Sayed Ali Akbar Ghorashi, Jennifer Cano +1
Robust flavor-polarized phases are a striking hallmark of many flat-band moiré materials. In this work, we trace the origin of this spontaneous polarization to a lesser-known quant…
Tunable Topological Phases in Multilayer Graphene Coupled to a Chiral Cavity
Sayed Ali Akbar Ghorashi, Jennifer Cano, Ceren B. Dag
Coupling photonic cavity fields to electronic degrees of freedom in 2D materials introduces an additional control knob to the toolbox of solid-state engineering. Here we demonstrat…
Optimizing superlattice bilayer graphene for a fractional Chern insulator
Dathan Ault-McCoy, M. Nabil Y. Lhachemi, Aaron Dunbrack +2
Bernal-stacked bilayer graphene modulated by a superlattice potential is a highly tunable system predicted to realize isolated topological flat bands. In this work we calculate the…
Dynamical Generation of Higher-order Spin-Orbit Couplings, Topology and Persistent Spin Texture in Light-Irradiated Altermagnets
Sayed Ali Akbar Ghorashi, Qiang Li
Altermagnets have been identified as the third category of magnetic materials, exhibiting momentum-dependent spin splitting characterized by even powers of momentum. In this study,…