Analysis of the Kondo effect in ferromagnetic atomic-sized contacts
Por favor, use este identificador para citar o enlazar este ítem:
http://hdl.handle.net/10045/25205
Título: | Analysis of the Kondo effect in ferromagnetic atomic-sized contacts |
---|---|
Autor/es: | Calvo, M. Reyes | Jacob, David | Untiedt, Carlos |
Grupo/s de investigación o GITE: | Grupo de Nanofísica |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Física Aplicada |
Palabras clave: | Electronic transport | Magnetism | Nanocontacts | Kondo |
Área/s de conocimiento: | Física de la Materia Condensada |
Fecha de publicación: | 20-ago-2012 |
Editor: | American Physical Society |
Cita bibliográfica: | CALVO, M.R.; JACOB, D.; UNTIEDT, C. “Analysis of the Kondo effect in ferromagnetic atomic-sized contacts”. Physical Review B. Vol. 86, No. 7 (2012). ISSN 1098-0121, pp. 075447-1/17 |
Resumen: | Atomic contacts made of ferromagnetic metals present zero-bias anomalies in the differential conductance due to the Kondo effect. These systems provide a unique opportunity to perform a statistical analysis of the Kondo parameters in nanostructures since a large number of contacts can be easily fabricated using break-junction techniques. The details of the atomic structure differ from one contact to another so a large number of different configurations can be statistically analyzed. Here we present such a statistical analysis of the Kondo effect in atomic contacts made from the ferromagnetic transition metals Ni, Co, and Fe. Our analysis shows clear differences between materials that can be understood by fundamental theoretical considerations. This combination of experiments and theory allows us to extract information about the origin and nature of the Kondo effect in these systems and to explore the influence of geometry and valence in the Kondo screening of atomic-sized nanostructures. |
Patrocinador/es: | This work was partly supported by the Spanish MEC (Grants No. FIS2010-21883-C02-01 and No. CONSOLIDER CSD2007-0010) and Comunidad Valenciana (ACOMP/2012/127 and PROMETEO/2012/011).M. R. Calvo aknowledges financial support from the Spanish MEC. |
URI: | http://hdl.handle.net/10045/25205 |
ISSN: | 1098-0121 (Print) | 1550-235X (Online) |
DOI: | 10.1103/PhysRevB.86.075447 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | ©2012 American Physical Society |
Revisión científica: | si |
Versión del editor: | http://dx.doi.org/10.1103/PhysRevB.86.075447 |
Aparece en las colecciones: | INV - Grupo de Nanofísica - Artículos de Revistas |
Archivos en este ítem:
Archivo | Descripción | Tamaño | Formato | |
---|---|---|---|---|
2012_PhysRevB.86.075447.pdf | 1,21 MB | Adobe PDF | Abrir Vista previa | |
Todos los documentos en RUA están protegidos por derechos de autor. Algunos derechos reservados.