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Domain configurations of the "incommensurate" structures of 2H-TaSe2 and Bi2Sr2(Ca1-xLn(x))Cu2O8+delta studied by
Micron (Oxford, England : 1993)
|June 1, 2000
Abstract:
High-resolution transmission electron microscopy (HRTEM) images of the "incommensurate" structures of 2H-TaSe2 and Bi2Sr2Ca1-xLnx Cu2O8+delta (Ln: rare earth metal) are shown. They were taken from a wide specimen area with homogeneous thickness. For the former, a configuration of two domains was found by a scrutiny of HRTEM images. For the latter, many configurations of two domains were extracted from the photometric density distribution in the one-dimensional contrast modulations in HRTEM images. One domain of the two in both configurations is created by a phase slip occurring in the primary atomic displacement longitudinal wave.