Electronic band structure from quasiparticle interference and Landau quantization in WTe₂

2024/05/22 by Raquel Sánchez-Barquilla, Francisco Martín Vega, Sánchez-Barquilla, Raquel +21
Materials Science · Physics and Astronomy · #2D Materials and Applications #FOS: Physical sciences #Graphene research and applications #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Strongly Correlated Electrons (cond-mat.str-el) #Topological Materials and Phenomena

paper · pdf · doi:10.48550/arxiv.2405.13837

openalex publication_date 2024/05/22 · openalex created_date 2024/05/26 · openalex updated_date 2026/08/01

Abstract

WTe₂ stands out as a semimetal presenting Fermi level quantum oscillations in most measured quantities under magnetic fields. However, the electronic band structure above and below the Fermi level has not been explored completely. Here we study the electronic band structure of WTe₂ by quasiparticle interference with Scanning Tunneling Microscopy (STM) and observe, with the support of Density Functional Theory (DFT), the electron and hole bands around the Fermi level. We also report on the observation of Landau quantization in atomically resolved measurements and discuss the possible connection with band structure calculations.

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