Abstrakt: |
In 1930, Pauling stated that if two faces of a constituent layer of a layered crystal, such as serpentine, are not equivalent, there would be a tendency for the layer to bend owing to the strain induced by the structural mismatch between adjacent layers, resulting in the formation of a cylindrical structure [1]. Similar cylindrical structures were found in misfit-layer chalcogenides that are built up with alternating MCh2 (M = transition metals; Ch = S, Se, Te) sandwiches and M΄Ch (M΄ = Pb, Sn, Bi, Lanthanides, etc.) double layers [2]. [ABSTRACT FROM AUTHOR] |