Diffraction evidence of the formation of defect-density waves in incommensurate modulated structures
Bagautdinov B. Sh., Shmyt'ko I. M.
Diffraction evidence of the formation of defect-density waves in incommensurate modulated phases has been found for the first time by an x-ray method. The test samples were thiourea crystals. A new state of the modulated structure is established. It is characterized by a superposition of several modulation waves along a single crystallographic direction.