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Título:	XMCD Proof of Ferromagnetic Behavior in ZnO Nanoparticles
Autor:	Guglieri, C. CSIC; Laguna-Marco, M. A. CSIC ORCID ; García García-Tuñón, Miguel Ángel ; Carmona, N. CSIC ORCID; Céspedes, Eva CSIC ORCID; García-Hernández, Mar CSIC ORCID ; Espinosa, A. CSIC ORCID; Chaboy, Jesús CSIC
Fecha de publicación:	2012
Editor:	American Chemical Society
Citación:	Journal of Physical Chemistry C 116(11): 6608-6614 (2012)
Resumen:	The combined element-specific X-ray absorption spectroscopy (XAS) and X-ray magnetic circular dichroism (XMCD) study of ZnO nanoparticles (NPs) capped with organic molecules confirms the occurrence of intrinsic ferromagnetic-like (FML) behavior up to room temperature (HTFM). Zn K-edge XMCD measurements reveal the coexistence of two different magnetic contributions: a paramagnetic response from the core of the NP, and a ferromagnetic-like contribution stemming from the interface formed between the ZnO core of the NP and the organic molecule. The extent and conformation of this interface depends on the capping molecule, and as demonstrated in ZnO/ZnS heterostructures, the FML behavior is reinforced when neat interfaces are formed.
Descripción:	7 páginas, 7 figuras.-- et al.
Versión del editor:	http://dx.doi.org/10.1021/jp300837f
URI:	http://hdl.handle.net/10261/56165
DOI:	10.1021/jp300837f
ISSN:	1932-7447
E-ISSN:	1932-7455
Aparece en las colecciones:	(ICMA) Artículos (ICV) Artículos

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XMCD Proof of Ferromagnetic Behavior in ZnO Nanoparticles