Projected spin texture as a bulk indicator of fragile topology

Gunnar F. Lange; Adrien Bouhon; Robert-Jan Slager

doi:10.1103/physrevresearch.5.033013

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arXiv · 2211.05137

Projected spin texture as a bulk indicator of fragile topology

Gunnar F. Lange·Adrien Bouhon·Robert-Jan Slager

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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.

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Gunnar F. Lange, Adrien Bouhon, Robert-Jan Slager. 2022-11-09. Projected spin texture as a bulk indicator of fragile topology. https://doi.org/10.1103/physrevresearch.5.033013

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