Topological insulators based on 2D shape-persistent organic ligand complexes. Issue 2 (27th November 2014)

• Record Type: Journal Article
• Authors: Zhou, Qionghua; Wang, Jinlan; Chwee, Tsz Sian; Wu, Gang; Wang, Xiaobai; Ye, Qun; Xu, Jianwei; Yang, Shuo-Wang
• Is Part Of: Nanoscale. Volume 7:Issue 2(2015)
• Page Start: 727
• Page End: 735
• Publication Date: 2014-11-27
• Subjects: Nanoscience -- Periodicals; Nanotechnology -- Periodicals; 620.505
• DOI: 10.1039/c4nr05247a
• Languages: English
• ISSNs: 2040-3364

Abstract

Abstract : We propose a new family of 2D topological insulators based on the coordination of shape persistent organic ligands to heavy transition metals ions such as Pd 2+ and Pt 2+ . Abstract : Topological insulators (TIs) represent an exciting new class of materials with potential applications in spintronics and quantum computing. In this work, we present a theoretical study on a new family of two dimensional (2D) nanomaterials based on the coordination of shape persistent organic ligands (SPOLs) to heavy transition metal ions such as Pd 2+ and Pt 2+ . These 2D structures may be readily fabricated and are expected to be stable under normal atmospheric conditions. From first principles calculations and tight-binding model simulations carried out to characterize the bulk band structures, edge states, spin Chern numbers, and the Z2 topological invariants, we were able to identify candidates with non-trivial topological properties that may serve as topological insulators in real world applications.