Chapter/Index: Introduction | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Appendix
| An example of misfit layer chalcogenides with NaCl-type H layer is La1.2CrS3.2 [1 - 2] with a periodical stacking of H (CrS2) and Q (LaS) layers. The repeat distance along the a axis, i.e. along the misfit direction, is different for each layer, being the coincidence unit cell 3 × aQ = 5 × aH as indicated in the electron diffraction pattern in Figure 3466a. Their mutual mismatch induces a modulation (i.e. represented by the satellite reflections), in this commensurate case, shown by the small arrows.
Figure 3466a. Electron diffraction pattern from a crystal of LaCrS3 oriented along the [001] zone axis. [3]
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![Electron diffraction pattern from a crystal of LaCrS3 oriented along the [001] zone axis](image1/3467b.jpg)