Strong and Weak Topology Probed by Surface Science Topological Insulator Properties of Phase Change Alloys and Heavy Metal Graphene By: Christian Pauly Publisher: Springer Print ISBN: 9783658118105, 3658118105 eText ISBN: 9783658118112, 3658118113 Copyright year: 2015 Format: PDF Available from $ 79.99 USD SKU: 9783658118112 Christian Pauly demonstrates the strong topological properties of the technologically relevant phase change materials Sb2Te3 and Ge2Sb2Te5 by using two powerful techniques for mapping the surface electronic structure: scanning tunneling spectroscopy (STS) and angle-resolved photoemission spectroscopy (ARPES). In the case of a phase change material, this opens up the possibility of switching between an insulating amorphous and a conducting topological phase on nanosecond-time scales. Moreover, the author presents first experimental results of a weak topological insulator, namely on the bismuth-based graphene-like sheet system Bi14Rh3I9, revealing a topologically protected one-dimensional edge channel as its fingerprint. The edge state is as narrow as 0.8 nm, making it extremely attractive to device physics. Those strong and weak topological insulators are a new phase of quantum matter giving rise to robust boundary states which are protected from backscattering and localization. SKU: 9783658118105 Ebooks here: https://ebookscoffee.sellpass.io/products/Strong-and-Weak-Topology-Probed-by-Surface-Science
