Pentagonal nanowires from topological crystalline insulators: a platform for intrinsic core–shell nanowires and higher-order topology

• DOI: 10.1039/d4nh00019f
• Publication Date: 2024-05-17T06:20:51Z
• Authors: Ghulam Hussain; Giuseppe Cuono; Piotr Dziawa; Dorota Janaszko; Janusz Sadowski; Slawomir Kret; Bogusława Kurowska; Jakub Polaczyński; Kinga Warda; Shahid Sattar; Carlo M. Canali; Alexander Lau; Wojciech Brzezicki; Tomasz Story; Carmine Autieri
• Keywords: Condensed Matter - Materials Science; Pentagonal nanowires; Condensed Matter - Mesoscale and Nanoscale Physics; Mesoscale and Nanoscale Physics (cond-mat.mes-hall); Density functional theory; Materials Science (cond-mat.mtrl-sci); FOS: Physical sciences; Topology

(a) Scanning transmission electron microscopy image of a pentagonal nanowire; the inset shows the disclination and core chain (CC). The red bands from the core connect the valence and conduction bands for (b) cation and (c) anion twin-boundaries.