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Low-energy excitations in type-II Weyl semimetal ${T}_{d}\text{\ensuremath{-}}{\mathrm{MoTe}}_{2}$ evidenced through optical conductivity

Santos-Cottin, David ; Martino, Edoardo ; Le Mardelé, Florian ; Witteveen, C. ; Rohr, F. O. von ; Homes, C. C. ; Rukelj, Z. ; Akrap, Ana

In: Physical Review Materials, 2020, vol. 4, no. 2, p. 021201

Molybdenum ditelluride, MoTe2, is a versatile material where the topological phase can be readily tuned by manipulating the associated structural phase transition. The fine details of the band structure of MoTe2, key to understanding its topological properties, have proven difficult to disentangle experientially due to the multiband character of the material. Through experimental optical...