TY - JOUR
T1 - Nature of domains in lanthanum calcium cobaltite perovskite revealed by atomic resolution Z-contrast and electron energy loss spectroscopy
AU - Bangert, U.
AU - Falke, U.
AU - Weidenkaff, A.
PY - 2006/8/25
Y1 - 2006/8/25
N2 - Lamella-type planar features in La0.6Ca0.4CoO3 perovskite were investigated in a dedicated scanning transmission electron microscope. Atomic resolution Z-contrast imaging and modelling, along with electron energy loss spectroscopy, gave evidence these features could be Ca-enriched domains of the rock salt structure in the perovskite lattice. Z-contrast of a second type of planar fault, occurring after repeated investigations in the electron microscope, suggests formation of ordered O-vacancy arrangements on Co-O planes.
AB - Lamella-type planar features in La0.6Ca0.4CoO3 perovskite were investigated in a dedicated scanning transmission electron microscope. Atomic resolution Z-contrast imaging and modelling, along with electron energy loss spectroscopy, gave evidence these features could be Ca-enriched domains of the rock salt structure in the perovskite lattice. Z-contrast of a second type of planar fault, occurring after repeated investigations in the electron microscope, suggests formation of ordered O-vacancy arrangements on Co-O planes.
KW - Batteries
KW - Defect formation
KW - Electron energy loss spectroscopy
KW - Electron microscopy
UR - http://www.scopus.com/inward/record.url?scp=33747827871&partnerID=8YFLogxK
U2 - 10.1016/j.mseb.2006.04.044
DO - 10.1016/j.mseb.2006.04.044
M3 - Article
AN - SCOPUS:33747827871
SN - 0921-5107
VL - 133
SP - 30
EP - 36
JO - Materials Science and Engineering: B
JF - Materials Science and Engineering: B
IS - 1-3
ER -