#topological insulators
11 papers · 1 filter
Drumhead Surface States of Rhombohedral Graphite with Near Ideal Quantum Geometry Condition
Lin-Lin Wang
The paper uses density functional theory and Wannier functions to investigate the symmetry‑protected topology and quantum‑geometric properties of bulk and surface drumhead states i…
Consistent symmetry breaking and topological phases
Yuezhao Li, Guo Chuan Thiang
The paper studies operators that are invariant under a symmetry group and shows that their equivariant indices must remain consistent when the symmetry is reduced to a finite‑index…
Flat-band formation and chiral superconductivity in driven topological insulators
Suman Jyoti De, Leo Goutte, Kartiek Agarwal +1
The paper shows that circularly polarized light can Floquet‑engineer nearly flat or Mexican‑hat electronic bands on the surface of three‑dimensional topological insulators, enablin…
Giant Bulk-Rashba Splitting in Polar Topological Insulator BiSbTeSe
Ritam Chakraborty
The paper demonstrates that the ordered polar compound BiSbTeSe₂ lacks inversion symmetry, enabling a giant bulk Rashba spin splitting while preserving its topological‑insulator ba…
Programmable Bulk Topological Channels via Strain Engineering
Jiawei Xia, Shuze Zhu
The paper proposes using strain engineering to create topological domain walls inside a material’s bulk, producing interior chiral channels that are robust against boundary disorde…
Spinless charged excitation at the interface between a conventional topological insulator and a topological Mott insulator
Cesar A. Gallegos, Andrew J. Millis, Steven R. White
The paper uses density-matrix renormalization group simulations of a triangular-lattice Hofstadter-Hubbard model with a spatially varying interaction to study the interface between…