title: First evidence of a single-ion electron trap at the surface of an ionic oxide.
authors.affiliation: Dipartimento di Chimica IFM, Università di Torino, Istituto Nazionale per la Fisica della Materia, via P. Giuria 7, 10125 Torino, Italy.
authors.forename: Mario
authors.initials: M
authors.lastname: Chiesa
authors.forename: Maria Cristina
authors.initials: MC
authors.lastname: Paganini
authors.forename: Elio
authors.initials: E
authors.lastname: Giamello
authors.forename: Cristiana
authors.initials: C
authors.lastname: Di Valentin
authors.forename: Gianfranco
authors.initials: G
authors.lastname: Pacchioni