Structure and electronic behavior of 26-atom Cu-Ag and Cu-Au nanoalloys Gregorio Guzmán-Ramírez, Juvencio Robles and Faustino Aguilera-Granja Eur. Phys. J. D, 70 9 (2016) 194 Published online: 27 September 2016 DOI: 10.1140/epjd/e2016-70021-1