title: Generation of spin in single cholesterol molecules on gold.
abstract: Compact islands of cholesterol on Au(111) were investigated with scanning tunneling microscopy at ∼5 K. Single molecules have been switched among several states, three of which exhibit a sharp spectroscopic feature at the Fermi level. This feature signals the presence of a localized spin and suggests that the molecule may be controllably switched between paramagnetic and diamagnetic states.
authors.affiliation: Institut für Experimentelle und Angewandte Physik, Christian-Albrechts-Universität zu Kiel, 24098 Kiel, Germany. berndt@physik.uni-kiel.de.
authors.forename: Sujoy
authors.initials: S
authors.lastname: Karan
authors.affiliation: Institut für Experimentelle und Angewandte Physik, Christian-Albrechts-Universität zu Kiel, 24098 Kiel, Germany. berndt@physik.uni-kiel.de.
authors.forename: Richard
authors.initials: R
authors.lastname: Berndt