title: Modification of molecular spin crossover in ultrathin films.
abstract: Scanning tunneling microscopy and local conductance mapping show spin-state coexistence in bilayer films of Fe[(H2Bpz2)2bpy] on Au(111) that is independent of temperature between 131 and 300 K. This modification of bulk behavior is attributed in part to the unique packing constraints of the bilayer film that promote deviations from bulk behavior. The local density of states measured for different spin states shows that high-spin molecules have a smaller transport gap than low-spin molecules and are in agreement with density functional theory calculations.
authors.affiliation: Department of Physics, North Carolina State University, Raleigh, North Carolina 27695, United States.
authors.forename: Alex
authors.initials: A
authors.lastname: Pronschinske
authors.forename: Yifeng
authors.initials: Y
authors.lastname: Chen
authors.forename: Geoffrey F
authors.initials: GF
authors.lastname: Lewis
authors.forename: David A
authors.initials: DA
authors.lastname: Shultz
authors.forename: Arrigo
authors.initials: A
authors.lastname: Calzolari
authors.forename: Marco Buongiorno
authors.initials: MB
authors.lastname: Nardelli
authors.forename: Daniel B
authors.initials: DB
authors.lastname: Dougherty
mesh_terms: D006046:Gold / Q000737:chemistry*; D007501:Iron / Q000737:chemistry*; D016252:Microscopy, Scanning Tunneling; D013696:Temperature
chemical_list: D006046:Gold; D007501:Iron