We investigated the growth and electronic properties of Co-phthalocyanine(CoPc) molecule deposited on iron film with different structures (pseudomorph-fcc and bcc) and on iron nanowires by scanning tunnelling microscopy and X-ray absorption spec- troscopy (XAS). CoPc molecules self–assemble in a two–dimensional arrangement with the molecular plane parallel to the iron surfaces and the local order is lost after the first layer. The molecule–ferromagnet interaction causes the broadening of Co and N unoccupied molecular states as well as different electronic distribution of N states as a function of the atomic structure of iron surface. The ferromagnetic coupling between the molecule and the iron film is dominated by the electronic interaction between Co and the first Fe layer. CoPc 2D arrangement turns into 1D by using as a template the iron nanowire grown on a facet surface of oxydized Cu(332) surface. CoPc molecules interact weakly with the iron nanowires manifesting a substantial Co 3 dz spectral feature in XAS spectrum and the possibility of a magnetic interaction between Co moment and iron nanowires. Both CoPc 2D and 1D arrangements can open up new interesting scenarios to tune the magnetic properties of hybrid interfaces involving metallorganic molecules.

CoPc 2D and 1D arrangement on a ferromagnetic surface / E. Annese, C. Barbosa, G. Rossi, J. Fujii. - In: LANGMUIR. - ISSN 0743-7463. - 32:21(2016), pp. 5300-5305. [10.1021/acs.langmuir.6b01249]

CoPc 2D and 1D arrangement on a ferromagnetic surface

G. Rossi;
2016

Abstract

We investigated the growth and electronic properties of Co-phthalocyanine(CoPc) molecule deposited on iron film with different structures (pseudomorph-fcc and bcc) and on iron nanowires by scanning tunnelling microscopy and X-ray absorption spec- troscopy (XAS). CoPc molecules self–assemble in a two–dimensional arrangement with the molecular plane parallel to the iron surfaces and the local order is lost after the first layer. The molecule–ferromagnet interaction causes the broadening of Co and N unoccupied molecular states as well as different electronic distribution of N states as a function of the atomic structure of iron surface. The ferromagnetic coupling between the molecule and the iron film is dominated by the electronic interaction between Co and the first Fe layer. CoPc 2D arrangement turns into 1D by using as a template the iron nanowire grown on a facet surface of oxydized Cu(332) surface. CoPc molecules interact weakly with the iron nanowires manifesting a substantial Co 3 dz spectral feature in XAS spectrum and the possibility of a magnetic interaction between Co moment and iron nanowires. Both CoPc 2D and 1D arrangements can open up new interesting scenarios to tune the magnetic properties of hybrid interfaces involving metallorganic molecules.
phthalocyanine chains; cobalt-phthalocyanine; FE; interface; CU(100); arrays
Settore FIS/03 - Fisica della Materia
2016
LANGMUIR
Article (author)
File in questo prodotto:
File Dimensione Formato  
paper_030516-1.pdf

non disponibili

Descrizione: Articolo principale accettatpo
Tipologia: Post-print, accepted manuscript ecc. (versione accettata dall'editore)
Dimensione 1.22 MB
Formato Adobe PDF
1.22 MB Adobe PDF   Visualizza/Apri   Richiedi una copia
acs%2Elangmuir%2E6b01249.pdf

non disponibili

Tipologia: Publisher's version/PDF
Dimensione 6.15 MB
Formato Adobe PDF
6.15 MB Adobe PDF   Visualizza/Apri   Richiedi una copia
Pubblicazioni consigliate

Caricamento pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/384278
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 1
  • ???jsp.display-item.citation.isi??? 1
social impact