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B. Yan, L. Müchler, and C. Felser, "Prediction of Weak Topological Insulators in Layered Semiconductors," Physical Review Letters 109 (11), 116406-1-116406-5 (2012).

The first prediction of weak TI materials

The first prediction of weak TI materials. We predicted the first group of weak TI materials in the honeycomb compounds, such as KHgSb. Their surface states exhibit two Dirac cones with opposite spin-textures on the side surface. The energy gap can be as large as 200 meV [1].

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