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| Título: | Strong paramagnetism of gold nanoparticles deposited on a sulfolobus acidocaldarius S layer |
Autor: | Bartolomé, Juan CSIC ORCID; Bartolomé, Fernando CSIC ORCID; García, L. M. CSIC; Figueroa, A. I. CSIC ORCID; Repollés, A. CSIC; Martínez Pérez, M. J. CSIC ORCID; Luis, Fernando CSIC ORCID; Magén, César | Fecha de publicación: | 2012 | Editor: | American Physical Society | Citación: | Physical Review Letters 109(24): 247203 (2012) | Resumen: | Magnetic properties of Au nanoparticles deposited on an archaeal S layer are reported. X-ray magnetic circular dichroism and superconducting quantum interference device magnetometries demonstrate that the particles are strongly paramagnetic, without any indication of magnetic blocking down to 16 mK. The average magnetic moment per particle is Mpart=2.36(7) ÃŽB. This contribution originates at the particle's Au 5d band, in which an increased number of holes with respect to the bulk value is observed. The magnetic moment per Au atom is 25 times larger than any measured in other Au nanoparticles or any other configurations up to date. © 2012 American Physical Society. | Descripción: | et al. | Versión del editor: | http://dx.doi.org/10.1103/PhysRevLett.109.247203 | URI: | http://hdl.handle.net/10261/74158 | DOI: | 10.1103/PhysRevLett.109.247203 | Identificadores: | doi: 10.1103/PhysRevLett.109.247203 issn: 0031-9007 e-issn: 1079-7114 |
| Aparece en las colecciones: | (ICMA) Artículos |
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| Strong Paramagnetism.pdf | 486,08 kB | Adobe PDF |  Visualizar/Abrir |
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