Building Complex Kondo Impurities by Manipulating Entangled Spin Chains
Choi, Deung-Jang (Max Planck Institute for the Structure and Dynamics of Matter)
Robles, Roberto (Institut Català de Nanociència i Nanotecnologia)
Yan, Sichao (Max Planck Institute for the Structure and Dynamics of Matter)
Burgess, Jacob A. J. (Max Planck Institute for the Structure and Dynamics of Matter)
Rolf-Pissarczyk, Steffen (Max Planck Institute for the Structure and Dynamics of Matter)
Gauyacq, Jean-Pierre (Institut des Sciences Moléculaires d'Orsay (Paris, França))
Lorente Palacios, Nicolás (Centro de Física de Materiales (Sant Sebastià, País Basc))
Ternes, Markus (Max Planck Institute for Solid State Research)
Loth, Sebastian (Max Planck Institute for the Structure and Dynamics of Matter)

Fecha:	2017
Resumen:	The creation of molecule-like structures in which magnetic atoms interact controllably is full of potential for the study of complex or strongly correlated systems. Here, we create spin chains in which a strongly correlated Kondo state emerges from magnetic coupling of transition-metal atoms. We build chains up to ten atoms in length by placing Fe and Mn atoms on a CuN surface with a scanning tunneling microscope. The atoms couple antiferromagnetically via superexchange interaction through the nitrogen atom network of the surface. The emergent Kondo resonance is spatially distributed along the chain. Its strength can be controlled by mixing atoms of different transition metal elements and manipulating their spatial distribution. We show that the Kondo screening of the full chain by the electrons of the nonmagnetic substrate depends on the interatomic entanglement of the spins in the chain, demonstrating the prerequisites to build and probe spatially extended strongly correlated nanostructures.
Ayudas:	Ministerio de Economía y Competitividad MAT2012-38318-C03-02 Ministerio de Economía y Competitividad SEV-2013-0295
Derechos:	Tots els drets reservats.
Lengua:	Anglès
Documento:	Article ; recerca ; Versió acceptada per publicar
Materia:	Entanglement ; Kondo effect ; Scanning tunneling microscopy ; Spin chains
Publicado en:	Nano letters, Vol. 17, Núm. 10 (November 2017) , p. 6203-6209, ISSN 1530-6992

DOI: 10.1021/acs.nanolett.7b02882

Post-print 15 p, 1.7 MB

El registro aparece en las colecciones:
Documentos de investigación > Documentos de los grupos de investigación de la UAB > Centros y grupos de investigación (producción científica) > Ciencias > Institut Català de Nanociència i Nanotecnologia (ICN2)
Artículos > Artículos de investigación
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