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Showing 1–7 of 7 results
Advanced filters: Author: Sangjun Jeon Clear advanced filters

  • The conducting surface states of 3D topological insulators are two-dimensional. In an analogous way, the edge states of 2D topological insulators are one-dimensional. Direct evidence of this one-dimensionality is now presented, by means of scanning tunnelling spectroscopy, for bismuth bilayers—one of the first theoretically predicted 2D topological insulators.

    • Ilya K. Drozdov
    • A. Alexandradinata
    • Ali Yazdani
    Research
    Nature Physics
    Volume: 10, P: 664-669

  • Three-dimensional Dirac semimetals such as Cd3As2 are attracting attention because their electronic structure can be considered to be the three-dimensional analogue of graphene’s. Low-temperature scanning tunnelling measurements of the 112 cleavage plane of Cd3As2 now reveal its electronic structure down to atomic length scales, as well as its Landau spectrum and quasiparticle interference pattern.

    • Sangjun Jeon
    • Brian B. Zhou
    • Ali Yazdani
    Research
    Nature Materials
    Volume: 13, P: 851-856

  • The study of the band structure and crystal symmetry of the semimetal bismuth indicates that this material is a higher-order topological insulator hosting robust one-dimensional metallic states on the hinges of the crystal.

    • Frank Schindler
    • Zhijun Wang
    • Titus Neupert
    Research
    Nature Physics
    Volume: 14, P: 918-924

  • High-resolution scanning tunnelling microscopy measurements show that chains of magnetic atoms on the surface of a superconductor provide a promising platform for realizing and manipulating Majorana fermion quasiparticles.

    • Benjamin E. Feldman
    • Mallika T. Randeria
    • Ali Yazdani
    Research
    Nature Physics
    Volume: 13, P: 286-291