Pierluigi Gargiani (Avtor), Giorgio Rossi (Avtor), Roberto Biagi (Avtor), Valdis Corradini (Avtor), Maddalena Pedio (Avtor), Sara Fortuna (Avtor), Arrigo Calzolari (Avtor), Stefano Fabris (Avtor), Julio Criginski Cezar (Avtor), N. B. Brookes (Avtor), Maria Grazia Betti (Avtor)

Povzetek

The spin and orbital configuration of magnetic metal phthalocyanines (MPcs) deposited on metallic substrates are strongly influenced by the rehybridization of the molecular states with the underlying metal. FePc, CoPc, and CuPc isolated molecules are archetypal systems to investigate the interrelationship between magnetic moments and orbital symmetry after deposition on a metallic substrate. MPcs form long-range ordered chains self-assembled along the reconstructed channels of the Au(110) surface. X-ray magnetic circular dichroism from the L2,3 absorption edges of Fe, Co, and Cu shows that the orbital and spin configuration are strongly modified upon adsorption on the Au(110) surface if the orbitals responsible of the magnetic moment are involved in the interaction process. The magnetic moment for a single layer of molecular chains is completely quenched for the CoPc molecules, fully preserved for the CuPc and reduced for the FePc ones. The modified magnetic configuration is confined to the very interface layer, i.e., to the MPc molecules bound to the metal substrate up to the compact packing of the single layer. The different response can be rationalized in terms of the symmetry/orientation of the metal-ion d states interacting with the substrate states, as indicated by density functional theory calculations in agreement with experimental findings.

Ključne besede

phthalocyanine;Au(110);gold;self-assembly;patterns;configuration;density functional theory;CuPc;FePc;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UNG - Univerza v Novi Gorici
UDK: 54
COBISS: 4540923 Povezava se bo odprla v novem oknu
ISSN: 1098-0121
Št. ogledov: 4002
Št. prenosov: 0
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

URN: URN:SI:UNG
Vrsta dela (COBISS): Delo ni kategorizirano
Strani: str. 165407-1-165407-11
Letnik: ǂVol. ǂ87
Zvezek: ǂno. ǂ16
Čas izdaje: 2013
DOI: 10.1103/PhysRevB.87.165407
ID: 9175964