DOI: 10.1063/1.119171. Studies of Mn valence conversion and oxygen vacancies in La1−xCaxMnO3−y using electron energy-loss spectroscopy

Studies of Mn valence conversion and oxygen vacancies in La1−xCaxMnO3−y using electron energy-loss spectroscopy

10.1063/1.119171

Crossref journal-article

AIP Publishing

Applied Physics Letters (317)

Abstract

Using the white line intensities, electron energy-loss spectroscopy in a transmission electron microscope has been employed to characterize the valence conversion and oxygen vacancies in La1−xCaxMnO3−y. For a nominal doping composition x=0.33, the ratio of Mn4+ to Mn3+ is determined to be more than 0.25 but less than 0.5, and the content of oxygen vacancy y is no more than 0.065 (equivalent to 2.2 at. % of the oxygen content). At ymax=0.065, 60% of the residual charge introduced by Ca doping is balanced by the conversion of Mn3+to Mn4+ and 40% by oxygen vacancy.

Bibliography

Wang, Z. L., Yin, J. S., Jiang, Y. D., & Zhang, J. (1997). Studies of Mn valence conversion and oxygen vacancies in La1âxCaxMnO3ây using electron energy-loss spectroscopy. Applied Physics Letters, 70(25), 3362â3364.

Authors 4

Z. L. Wang (first)
J. S. Yin (additional)
Y. D. Jiang (additional)
Jiming Zhang (additional)

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Dates

Type	When
Created	23 years, 1 month ago (July 26, 2002, 9:29 a.m.)
Deposited	1 year, 6 months ago (Feb. 3, 2024, 7:46 a.m.)
Indexed	3 months ago (May 27, 2025, 7:46 a.m.)
Issued	28 years, 2 months ago (June 23, 1997)
Published	28 years, 2 months ago (June 23, 1997)
Published Print	28 years, 2 months ago (June 23, 1997)

Funders 0

None

BibTeX

@article{Wang_1997, title={Studies of Mn valence conversion and oxygen vacancies in La1−xCaxMnO3−y using electron energy-loss spectroscopy}, volume={70}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.119171}, DOI={10.1063/1.119171}, number={25}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Wang, Z. L. and Yin, J. S. and Jiang, Y. D. and Zhang, Jiming}, year={1997}, month=jun, pages={3362–3364} }

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