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Comparative High-Pressure Study on Rare-Earth Entropy Fluorite-Type Oxides

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We report a comparative high-pressure study of two fluorite-type rare-earth oxides with increasing configurational entropy, (CePr)-O2 - δ and (CePrLa)-O2 - δ. Synchrotron-based powder X-ray diffraction and Raman spectroscopy were carried out up to 30 and 20 ... ...