XPS study of Pr sub(1-xCa) sub(x)MnO sub(3 (x = 0.2, 0.33, 0.4 and 0.84))

We have studied the Mn 2p, Ca 2p, and Pr 4d core levels of Pr sub(1-xCa) sub(x)MnO sub(3 (x = 0.2, 0.33, 0.4 and 0.84) as a function of x using X-ray photoelectron spectroscopy both at room temperature as well as 77 K. Suppression of chemical potential shifts have been observed at 77 K compared to t...

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Bibliographic Details
Published in:Journal of alloys and compounds 2011-07, Vol.509 (29), p.7674-7676
Main Authors: Dalai, M K, Kundu, R, Pal, P, Bhanja, M, Sekhar, B R, Martin, C
Format: Article
Language:English
Subjects:
Alloys
Manganese
Phase separation
Phase shift
Photoelectron spectroscopy
Spectra
X-ray photoelectron spectroscopy
X-rays
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Summary:We have studied the Mn 2p, Ca 2p, and Pr 4d core levels of Pr sub(1-xCa) sub(x)MnO sub(3 (x = 0.2, 0.33, 0.4 and 0.84) as a function of x using X-ray photoelectron spectroscopy both at room temperature as well as 77 K. Suppression of chemical potential shifts have been observed at 77 K compared to that of room temperature spectra. We have discussed this result by considering the concept of phase separation.)
ISSN:0925-8388
DOI:10.1016/j.jallcom.2011.05.003