Size dependence of optical phonons in yttria nanoparticles by means of Raman light scattering Ch. Beck, Ch. Bruch, K.-H. Ehses et R. HempelmannJ. Phys. IV France, 10 PR7 (2000) Pr7-87-Pr7-90DOI: https://doi.org/10.1051/jp4:2000716
