Magnetism and morphology of Co nanocluster superlattices on GdAu 2 / Au ( 111 ) – ( 13 × 13 )
نویسندگان
چکیده
A. Cavallin,1,* L. Fernández,2 M. Ilyn,3 A. Magaña,4 M. Ormaza,2 M. Matena,2 L. Vitali,3,5 J. E. Ortega,2,3,4 C. Grazioli,6,7 P. Ohresser,8 S. Rusponi,1 H. Brune,1 and F. Schiller3 1Institute of Condensed Matter Physics (ICMP), École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland 2Donostia International Physics Center, E-20018 Donostia–San Sebastián, Spain 3Centro de Fı́sica de Materiales (CSIC-UPV-EHU) and Materials Physics Center (MPC), E-20018 Donostia–San Sebastián, Spain 4Departamento de Fı́sica Aplicada I, Universidad del Paı́s Vasco, E-20018 Donostia–San Sebastián, Spain 5Ikerbasque, Basque Foundation for Science, E-48011 Bilbao, Spain 6Department of Chemical and Pharmaceutical Sciences, University of Trieste, I-34127 Trieste, Italy 7CNR-IOM, Laboratorio TASC, Basovizza, I-34149 Trieste, Italy 8Synchrotron SOLEIL, L’Orme des Merisiers, Saint-Aubin, F-91192 Gif-sur-Yvette, France (Received 4 February 2014; revised manuscript received 12 November 2014; published 10 December 2014)
منابع مشابه
Growth and structure of Ag on bilayer Co nanoislands on Cu(111).
We have studied the growth of Ag on bilayer high Co nanoislands on Cu(111) using scanning tunneling microscopy. Noble metal capping of magnetic nanostructures is known to influence the magnetism and knowledge of the growth is therefore important. We find that Ag preferentially nucleates on the Co nanoislands, initially leaving the free Cu sites clean. Furthermore we observe that those Co island...
متن کاملMagnetism of 3d transition metal atom on Au(110)-(1×2) and Au(111) surfaces
We calculate the magnetism of 3d transition-metal atoms on Au(110)-(1×2) and Au(111) surfaces based on the Density Functional Theory. Our results show that the surface relaxation enhances the orbital moments of left-end elements (Ti,V) and quenches the orbital moments of right-end elements (Fe,Co,Ni) on the Au(110)(1×2) surface. The middle elements (Cr,Mn) of the group have large spin moments o...
متن کاملFabrication of antiferromagnetic α-Cr2O3(0001) thin film and influence on magnetism of ultrathin Co film
We have investigated the fabrication of α-Cr2O3(0001) thin film on a Au(111) surface and the effect of the antiferromagnetic feature of α-Cr2O3(0001) on the magnetic properties of ultrathin Co film on α-Cr2O3(0001). Highly oriented α-Cr2O3(0001) thin film is fabricated by oxidizing Cr(110) thin film grown on a Au(111) surface. Upon the oxidization of threefold symmetric Cr(110) thin film, the α...
متن کاملInterlayer exchange coupling in ordered Fe nanocluster arrays grown on Al2O3/Ni3Al(111)
Interlayer exchange coupling in ordered Fe nanocluster arrays grown on Al2O3/Ni3Al(111) S. Vlaic,1,* L. Gragnaniello,1,† S. Rusponi,1 A. Cavallin,1,‡ F. Donati,1 Q. Dubout,1 C. Piamonteze,2 J. Dreiser,2 F. Nolting,2 and H. Brune1,§ 1Institute of Condensed Matter Physics, École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland 2Swiss Light Source, Paul Scherrer Institut, CH-5232 ...
متن کاملLocal electronic structure and density of edge and facet atoms at Rh nanoclusters self-assembled on a graphene template.
The chemical and physical properties of nanoclusters largely depend on their sizes and shapes. This is partly due to finite size effects influencing the local electronic structure of the nanocluster atoms which are located on the nanofacets and on their edges. Here we present a thorough study on graphene-supported Rh nanocluster assemblies and their geometry-dependent electronic structure obtai...
متن کامل