Abstract
Single-crystal diffraction data from the incommensurate host-guest composite structure of Bi-III—stable between 2.8 and —are found to contain very weak satellite reflections arising from structural modulations attributed to interactions between the host and guest structures. The principal effects of the modulation are a quasipairing of the guest atoms along their chains and some reduction in the closest approach of the host and guest atoms. It is suggested that these modulations play a key role in the stability of the structure. A similar modulated structure fits powder-diffraction data from Sb-II.
- Received 28 November 2006
- Publisher error corrected 4 June 2007
DOI:https://doi.org/10.1103/PhysRevB.75.184114
©2007 American Physical Society
Corrections
4 June 2007