Open AccessX-RAY TOPOGRAPHY STUDY OF THE FERROELASTIC DOMAIN WALLS IN NdP5O14 CRYSTALS
Author(s) -
Jiang Bailin,
Liu Xi-Lin,
Bin Xu,
Lu Baosheng
Publication year - 1986
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.35.1598
Subject(s) - domain (mathematical analysis) , contrast (vision) , ferroelasticity , diffraction , domain wall (magnetism) , materials science , crystallography , condensed matter physics , diffraction topography , x ray crystallography , optics , physics , chemistry , ferroelectricity , mathematics , mathematical analysis , optoelectronics , magnetization , quantum mechanics , magnetic field , dielectric
The ferroelastic domain walls in NdP5O14 crystals have been studied by means of X-ray fopography. It has been found that the ferroelastic domain walls appear to be black or white contrast in X-ray fopograph in the range of μt=0.6—7. The feature of the diffraction contrast of the ferroelastic domain walls is summarized as follows: (C2 - C1 = )△C//g contrast of the ferroelastic domain wall is strong △C⊥g contrast of the ferroelastic domain wall is invisible △C·g > 0 contrast of the ferroelastic domain wall appears to be black △C·g < 0 contrast of the ferroelastic domain wall appears to be white The diffraction contrast of the ferroelastic domain wall has been explained qualitatively by Penning-Polder's theory. According to the feature of the diffraction contrast, the structural characteristics of the ferroelastic domain wall has been discussed.