Please note that the April 2018 Psi-k Scientific Highlight article entitled “Spin-fluctuation and spin-relaxation effects of single adatoms from first principles” by Julen Ibañez-Azpiroz et al. is available for viewing or downloading from the Psi-k Webpage – psi-k.net/highlights or directly at psi-k.net/dowlnload/highlights/Highlight_140.pdf