We have studied theoretically the conditions for the occurrence of spontaneous off-center atomic displacements in pure zinc-blende semiconductors. A pseudo Jahn-Teller coupling of a chemically active valence d band with an s-like conduction band is predicted to lead to such a metastability. All-electron density functional calculations confirm that this is the case in CuCl. The unusual experimental manifestations of this metastability are outlined.
No takes yet. Share an insight, caveat, or question.
Wei et al. (1993) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: