Interplay between structure and magnetism in nanowires
arXiv:cond-mat/0603638 · doi:10.1103/PhysRevLett.96.125502
Abstract
We investigate the equilibrium geometry and electronic structure of MoSI nanowires using ab initio Density Functional calculations. The skeleton of these unusually stable nanowires consists of rigid, functionalized Mo octahedra, connected by flexible, bi-stable sulphur bridges. This structural flexibility translates into a capability to stretch up to approximate 20% at almost no energy cost. The nanowires change from conductors to narrow-gap magnetic semiconductors in one of their structural isomers.
4 pages with PRL standards and 3 figures