Oxygen isotope effect in chromium-doped Pr{sub 0.5}Ca{sub 0.5}MnO{sub 3} manganites
Journal Article
·
· Journal of Experimental and Theoretical Physics
- ENSICAEN/CNRS, Laboratoire CRISMAT (France)
- Russian Research Centre 'Kurchatov Institute' (Russian Federation)
The effect of oxygen isotope substitution on the properties of Pr{sub 0.5}Ca{sub 0.5}Mn{sub 1-x}Cr{sub x}O{sub 3} manganites (x = 0, 0.02, 0.05) have been studied. The introduction of chromium favors (i) the decomposition of a charge-ordered state and (ii) the appearance of a ferromagnetic metallic phase in Pr{sub 0.5}Ca{sub 0.5}Mn{sub 1-x}Cr{sub x}{sup 16-18}O{sub 3}. The isotope substitution {sup 16}O {sup {yields}} {sup 18}O leads to a decrease in the content of the ferromagnetic phase, an increase in the charge-ordering transition temperature (T{sub CO}), and a decrease in the ferromagnetic transition temperature (T{sub FM}). The isotope mass exponent is evaluated.
- OSTI ID:
- 21075799
- Journal Information:
- Journal of Experimental and Theoretical Physics, Journal Name: Journal of Experimental and Theoretical Physics Journal Issue: 1 Vol. 105; ISSN JTPHES; ISSN 1063-7761
- Country of Publication:
- United States
- Language:
- English
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