Nature of domains in lanthanum calcium cobaltite perovskite revealed by atomic resolution Z-contrast and electron energy loss spectroscopy

U. Bangert; U. Falke; A. Weidenkaff

doi:10.1016/j.mseb.2006.04.044

Nature of domains in lanthanum calcium cobaltite perovskite revealed by atomic resolution Z-contrast and electron energy loss spectroscopy

U. Bangert
, U. Falke
, A. Weidenkaff

Research output: Contribution to journal › Article › peer-review

Abstract

Lamella-type planar features in La_0.6Ca_0.4CoO₃ 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.

Original language	English
Pages (from-to)	30-36
Number of pages	7
Journal	Materials Science and Engineering: B
Volume	133
Issue number	1-3
DOIs	https://doi.org/10.1016/j.mseb.2006.04.044
Publication status	Published - 25 Aug 2006
Externally published	Yes

Keywords

Batteries
Defect formation
Electron energy loss spectroscopy
Electron microscopy

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10.1016/j.mseb.2006.04.044

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title = "Nature of domains in lanthanum calcium cobaltite perovskite revealed by atomic resolution Z-contrast and electron energy loss spectroscopy",

abstract = "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.",

keywords = "Batteries, Defect formation, Electron energy loss spectroscopy, Electron microscopy",

author = "U. Bangert and U. Falke and A. Weidenkaff",

year = "2006",

month = aug,

day = "25",

doi = "10.1016/j.mseb.2006.04.044",

language = "English",

volume = "133",

pages = "30--36",

journal = "Materials Science and Engineering: B",

issn = "0921-5107",

number = "1-3",

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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 - https://www.scopus.com/pages/publications/33747827871

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 -

Nature of domains in lanthanum calcium cobaltite perovskite revealed by atomic resolution Z-contrast and electron energy loss spectroscopy

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Keywords

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