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Showing 1 to 2 of 2 for “"valley topology"”.
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Exploring Quantum Phenomena in 2D Materials: From Valley Topology and Exciton Selection Rules to Tuning Magnetic Correlations
… and uses it in two applications: A) to analyze valley topology, and B) to derive gauge-invariant exciton selection rules. Part II investigates monolayer Nb₃Cl₈, quantifies magnetic anisotropy, and shows that biaxial strain tunes antiferromagnetic, paramagnetic, and ferromagnetic behavior. Part …
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Quantum Geometry and Topology in Periodically-Strained Graphene
… that can support narrow bands with nontrivial valley topology. When the strain field varies slowly on the large superlattice scale, the low-energy physics in a single valley is described by the Dirac Hamiltonian with a valley-antisymmetric strain-induced pseudomagnetic vector potential. As a …