Back to Search Start Over

Antiferromagnetic coupling of TbPc2 molecules to ultrathin Ni and Co films.

Authors :
Klar D
Klyatskaya S
Candini A
Krumme B
Kummer K
Ohresser P
Corradini V
de Renzi V
Biagi R
Joly L
Kappler JP
Del Pennino U
Affronte M
Wende H
Ruben M
Source :
Beilstein journal of nanotechnology [Beilstein J Nanotechnol] 2013 May 21; Vol. 4, pp. 320-4. Date of Electronic Publication: 2013 May 21 (Print Publication: 2013).
Publication Year :
2013

Abstract

The magnetic and electronic properties of single-molecule magnets are studied by X-ray absorption spectroscopy and X-ray magnetic circular dichroism. We study the magnetic coupling of ultrathin Co and Ni films that are epitaxially grown onto a Cu(100) substrate, to an in situ deposited submonolayer of TbPc2 molecules. Because of the element specificity of the X-ray absorption spectroscopy we are able to individually determine the field dependence of the magnetization of the Tb ions and the Ni or Co film. On both substrates the TbPc2 molecules couple antiferromagnetically to the ferromagnetic films, which is possibly due to a superexchange interaction via the phthalocyanine ligand that contacts the magnetic surface.

Details

Language :
English
ISSN :
2190-4286
Volume :
4
Database :
MEDLINE
Journal :
Beilstein journal of nanotechnology
Publication Type :
Academic Journal
Accession number :
23766956
Full Text :
https://doi.org/10.3762/bjnano.4.36