WebOct 25, 2016 · The Weyl semimetallic nature of TaAs can be demonstrated from the surface-state band structure as measured in ARPES by drawing a loop (dashed black line) in the surface Brillouin zone and... WebJun 1, 2024 · In the ARPES technique, in contrast to polycrystalline samples, defect free orientated films or crystals with flat and shiny surfaces has natural advantages due to its high sensitivity. In addition, the temperature and various photon energy dependent ARPES have an enormous interest in both non-magnetic and magnetic Weyl semimetals research.
Topological Materials: Weyl Semimetals Annual Review of …
http://iop.cas.cn/xwzx/snxw/202401/P020240118561104645816.pdf WebIn this article, we show how this technique can be used to monitor the ultrafast hot carrier dynamics and the conduction band dispersion in two typical monochalcogenide semiconductors: direct band gap, n -type indium selenide and indirect band gap, p -type germanium selenide. captain america vs thanos army gif
Electronic structure of monolayer 1T′-MoTe2 grown by molecular …
WebSep 9, 2015 · In their experiments, Hasan and colleagues and Ding and colleagues used angle-resolved photoemission spectroscopy (ARPES) to detect the Fermi arcs, characteristic of Weyl nodes, on the surface of TaAs. ARPES is an ideal tool for such a purpose. The technique involves shining light on a surface and measuring the energy … WebTaAs single crystals using ARPES. The core-level spec-trum in Fig. 1(e) shows the characteristic peaks of Ta and As elements, confirming the chemical composition of … WebThe TaAs family is the ideal materials class to introduce the signatures of Weyl points in a pedagogical way, from Fermi arcs to the chiral magnetotransport properties, followed by hunting for the type-II Weyl semimetals in WTe 2, MoTe 2, and related compounds. Many materials are members of big families, and topological properties can be tuned. captain america vs kingpin