Inherent nanoscale bend of crystal lattice in Fe-doped calcium copper titanate

Title
Inherent nanoscale bend of crystal lattice in Fe-doped calcium copper titanate
Authors
Chung, Sung-Yoon
Keywords
HIGH-DIELECTRIC-CONSTANT, GRAIN-BOUNDARIES, PEROVSKITE, POLARIZATION
Issue Date
2006-09
Publisher
American Institute of Physics
Abstract
Utilizing high-resolution electron microscopy and image simulation, it is demonstrated that some of
the crystal lattices of Fe-doped CaCu3Ti4O12 are intrinsically bent at the nanometer scale. A
comparison between experimentally obtained and simulated images indicates that the bending angle
is of a few milliradians, which is remarkable in a brittle oxide. Despite such lattice distortion, much
of the lattice strain induced by the distortion appears to be released at the domain walls where a
number of misfit dislocations are present.
URI
http://dspace.inha.ac.kr/handle/10505/1492
Appears in Collections:
College of Engineering(공과대학) > Materials Science & Engineering (신소재공학) > Local Access Journal, Reports (신소재공학 논문, 보고서)

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