Oxygen isotope effect in chromium-doped Pr0.5Ca0.5MnO3 manganites

被引：0
|
作者：
N. A. Babushkina
A. Maignan
A. N. Taldenkov
A. V. Inyushkin
E. A. Chistotina
机构：
[1] Russian Research Centre “Kurchatov Institute”,Laboratoire CRISMAT
[2] ENSICAEN/CNRS,undefined
来源：
Journal of Experimental and Theoretical Physics | 2007年 / 105卷
关键词：
75.47.Lx; 75.30.Kz; 71.30.+h;
D O I：
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学科分类号：
摘要：
The effect of oxygen isotope substitution on the properties of Pr0.5Ca0.5Mn1 − xCrxO3 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 Pr0.5Ca0.5Mn1 − xCrx16–18O3. The isotope substitution 16O → 18O leads to a decrease in the content of the ferromagnetic phase, an increase in the charge-ordering transition temperature (TCO), and a decrease in the ferromagnetic transition temperature (TFM). The isotope mass exponent is evaluated.
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页码：112 / 115
页数：3
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