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 moleculescouple antiferromagnetically to the ferromagnetic films, which is possibly due to a superexchange interaction via the phthalocyanine ligand that contacts the magnetic surface.

Antiferromagnetic coupling of TbPc2 molecules to ultrathin Ni and Co films / David, Klar; Svetlana, Klyatskaya; Andrea, Candini; Bernhard, Krumme; Kurt, Kummer; Philippe, Ohresser; Valdis, Corradini; DE RENZI, Valentina; Biagi, Roberto; Loic, Joly; Jean Paul, Kappler; DEL PENNINO, Umberto; Affronte, Marco; Heiko, Wende; Mario, Ruben. - In: BEILSTEIN JOURNAL OF NANOTECHNOLOGY. - ISSN 2190-4286. - STAMPA. - 4:1(2013), pp. 320-324. [10.3762/bjnano.4.36]

Antiferromagnetic coupling of TbPc2 molecules to ultrathin Ni and Co films

DE RENZI, Valentina;BIAGI, Roberto;DEL PENNINO, Umberto;AFFRONTE, Marco;
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 moleculescouple antiferromagnetically to the ferromagnetic films, which is possibly due to a superexchange interaction via the phthalocyanine ligand that contacts the magnetic surface.
2013
4
1
320
324
Antiferromagnetic coupling of TbPc2 molecules to ultrathin Ni and Co films / David, Klar; Svetlana, Klyatskaya; Andrea, Candini; Bernhard, Krumme; Kurt, Kummer; Philippe, Ohresser; Valdis, Corradini; DE RENZI, Valentina; Biagi, Roberto; Loic, Joly; Jean Paul, Kappler; DEL PENNINO, Umberto; Affronte, Marco; Heiko, Wende; Mario, Ruben. - In: BEILSTEIN JOURNAL OF NANOTECHNOLOGY. - ISSN 2190-4286. - STAMPA. - 4:1(2013), pp. 320-324. [10.3762/bjnano.4.36]
David, Klar; Svetlana, Klyatskaya; Andrea, Candini; Bernhard, Krumme; Kurt, Kummer; Philippe, Ohresser; Valdis, Corradini; DE RENZI, Valentina; Biagi, Roberto; Loic, Joly; Jean Paul, Kappler; DEL PENNINO, Umberto; Affronte, Marco; Heiko, Wende; Mario, Ruben
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/983384
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