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Investigation of the photoinduced magnetization of copper octacyanomolybdates nanoparticles by X-ray magnetic circular dichroism

Abstract : Through an extensive set of SQUID magnetic measurements, X-ray absorption spectroscopy, and X-ray magnetic circular dichroism, we have determined the nature of the metastable photomagnetic phase in the cyano-bridged 3D network Cs(2)Cu(7)[Mo(CN)(8)](4). The photomagnetic effect is induced by the photoconversion of Mo(IV) ions in low spin (LS) configuration (S = 0) into Mo(IV) ions in high spin (HS) configuration (S = 1). The magnetic and spectroscopic measurements fully support the LS to HS conversion, whereas the previously invoked charge transfer mechanism Mo(IV) + Cu(II) ⇒ Mo(V) + Cu(I) can be completely ruled out.
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https://hal.archives-ouvertes.fr/hal-00661289
Contributor : Stéphane Toulin Connect in order to contact the contributor
Submitted on : Thursday, January 19, 2012 - 10:02:20 AM
Last modification on : Tuesday, June 14, 2022 - 10:35:50 AM

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Sophie Brossard, Florence Volatron, Laurent Lisnard, Marie-Anne Arrio, Laure Catala, et al.. Investigation of the photoinduced magnetization of copper octacyanomolybdates nanoparticles by X-ray magnetic circular dichroism. Journal of the American Chemical Society, American Chemical Society, 2012, 134 (1), pp.222-228. ⟨10.1021/ja204594a⟩. ⟨hal-00661289⟩

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