3 papers
cond-mat.str-el2026
Vortex-enhanced photovoltaic current in disordered topological materials
Pavlo Sukhachov, Penghao Zhu, Ella Banyas +2
In disordered topological materials, real-space crystalline defects interplay with momentum-space wave function singularities to \textit{enhance} the bulk photovoltaic current. Wha…
cond-mat.mes-hall2025
Anomalous shift and optical vorticity in the steady photovoltaic current
Penghao Zhu, A. Alexandradinata
Steady illumination of a non-centrosymmetric semiconductor results in a bulk photovoltaic current, which is contributed by real-space displacements (`shifts') of charged quasiparti…
cond-mat.mes-hall2025
Delicate Wannier insulators
Zoltán Guba, Aris Alexandradinata, Tomáš Bzdušek
The defining feature of topological insulators is that their valence states are not continuously deformable to a suitably defined atomic limit without breaking the symmetry or clos…