2024
DOI: 10.3390/min15010021
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Experimental and Theoretical Study of Sc2O3 Nanoparticles Under High Pressure

André Luis de Jesus Pereira,
Juan Angel Sans,
Rosario Vilaplana
et al.

Abstract: This study investigates the high-pressure structural and vibrational properties of nano-Sc2O3 using a combination of X-ray diffraction, Raman spectroscopy, and theoretical calculations. Nano-Sc2O3 maintains its cubic bixbyite structure up to 26.4 GPa, without evidence of phase transitions, contrasting with bulk Sc2O3, which transitions to a monoclinic phase around 25–28 GPa. Raman spectroscopy reveals a pressure-induced blue shift in the vibrational modes, indicating lattice compression, and the absence of new… Show more

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