Projected spin texture as a bulk indicator of fragile topology

Abstract

We study the relationship between projected momentum-space spin textures and Wilson loop winding, proving a map between band topology of and spin topology in certain restricted symmetry settings, relevant to fragile topology. Our results suggest that the spin gap may act as a smoking gun bulk indicator for fragile topology within specific scenarios.

arXiv comment7+5 pages, 1+3 figures

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Cited by in corpus (6)

• Photo-induced electronic and spin topological phase transitions in monolayer bismuth
• Spin Chern number in altermagnets
• Model Hamiltonian for Altermagnetic Topological Insulators
• Topological Phases in Fractals: Local Spin Chern Marker in the Sierpinski carpet Kane-Mele-Rashba Model
• Quantum geometric bounds in spinful systems with trivial band topology
• Spin Weyl Topological Insulators