Comment on “The defect density waves in single crystal with incommensurately modulated structures: Neutron diffraction study” by Y. Park
High Throughput Factory, RIKEN Harima Institute 1-1-1, Kouto, Mikazuki-cho,
Sayo-gun, Hyogo 679-5148, Japan
Corresponding author: email@example.com
Accepted: 14 October 2001
In a recent letter (Europhys. Lett., 52 (2000) 557), Park discusses the formation of defect density waves (DDW) in a modulated system and a multiwave state explained in terms of a superposition of several modulations along a single crystallographic direction. We show that the structural evidence of DDW and of memory effects has been known for some time. Moreover, the figures on which Park bases his discussion contain apparent inconsistencies.
PACS: 61.72.-y – Defect and impurities in crystals; microstructure / 64.70.Rh – Commensurate-incommensurate transitions
© EDP Sciences, 2002