X-ray photoelectron spectroscopy study of (Ca/sub 1-x/La/sub x/)MnO/sub 2. 97/ (0. 1 less than or equal to x less than or equal to 0. 4)

Journal Article · Sun Mar 01 00:00:00 EST 1987 · J. Solid State Chem.; (United States)

DOI:https://doi.org/10.1016/0022-4596(87)90335-5· OSTI ID:6633500

Taguchi, H; Shimada, M

The X-ray photoelectron spectroscopy (XPS) of perovskite-type (Ca/sub 1-x/La/sub x/)MnO/sub 2.97/ (0.1 less than or equal to x less than or equal to 0.4) was measured at room temperature. From the absolute values of the binding energy difference (..delta..BE) of Ca2p-O1s, La3d-O1s, and Mn2p-O1s, both the chemical bonding of Mn-O and Ca-O become more covalent, and that of La-O becomes more ionic with increasing x. The electron transfer of the Mn-O-Mn path is dominant, and the electrical properties are strongly influenced by the decrease of the electron transfer of the Mn-O-(Ca,La)-O-Mn path.

• Research Organization: Osaka Prefectural Industrial Research Institute, Japan
• OSTI ID: 6633500
• Journal Information: J. Solid State Chem.; (United States), Vol. 67:1
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CALCIUM OXIDES
BINDING ENERGY
ELECTRIC CONDUCTIVITY
ELECTRONIC STRUCTURE
LANTHANUM OXIDES
MANGANESE OXIDES
ACTIVATION ENERGY
ELECTRON TRANSFER
MEDIUM TEMPERATURE
PHOTOELECTRON SPECTROSCOPY
POWDERS
STOICHIOMETRY
X RADIATION
ALKALINE EARTH METAL COMPOUNDS
CALCIUM COMPOUNDS
CHALCOGENIDES
ELECTRICAL PROPERTIES
ELECTROMAGNETIC RADIATION
ELECTRON SPECTROSCOPY
ENERGY
IONIZING RADIATIONS
LANTHANUM COMPOUNDS
MANGANESE COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RADIATIONS
RARE EARTH COMPOUNDS
SPECTROSCOPY
TRANSITION ELEMENT COMPOUNDS
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