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| Título: | Pressure effects on the magnetic properties of FeCuZr studied by x-ray magnetic circular dichroism: Evidence of weakening of ferromagnetism in FeCuZr alloys |
Autor: | Martínez, A.; Romero Fanego, Juan José CSIC ORCID; Bartolomé, Fernando CSIC ORCID; García, L. M. CSIC | Fecha de publicación: | 2012 | Editor: | American Institute of Physics | Citación: | Applied Physics Letters 101(2): 022412 (2012) | Resumen: | The room temperature changes of the magnetic behavior under pressure of an invar alloy of nominal composition (Fe 0.5Cu 0.5) 87Zr 13 (at. ) has been studied by K-edge x-ray magnetic circular dichroism (XMCD) and x-ray absorption near edge spectroscopy (XANES). The Curie temperature, as determined from low field magnetization measurements, is (255 ± 15)K. However XMCD shows a non negligible signal above this temperature. In addition, the XMCD signal decreases upon increasing pressure indicating a pressure-induced collapse of the magnetic moment. These results evidence the itinerant character of FeCuZr alloys as well as the occurrence of magnetovolume effects characterized by a strong dependence of the 3d band on the Fe-Fe nearest neighbor distances. | Descripción: | 4 páginas, 6 figuras.-- et al. | Versión del editor: | http://dx.doi.org/10.1063/1.4735300 | URI: | http://hdl.handle.net/10261/74172 | DOI: | 10.1063/1.4735300 | ISSN: | 0003-6951 | E-ISSN: | 1077-3118 |
| Aparece en las colecciones: | (ICV) Artículos (ICMA) Artículos |
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| Fichero | Descripción | Tamaño | Formato | |
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| Pressure effects.pdf | 964,31 kB | Adobe PDF |  Visualizar/Abrir |
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