Editorial expression of concern on intermediate Ce~(3+) defect level induced photoluminescence and third-order nonlinear optical effects in TiO_2-CeO_2 nanocomposites by S. Divya, V. P. N. Nampoori, P. Radhakrishnan, and A. Mujeeb

摘要

This comment refers to the article available at: 10.1007/S00339-013-8134-0. After publication of this article (Divya et al. 2014), a reader alerted the Editor-in-Chief of Applied Physics A that there were concerns regarding some of the data reported in the paper.