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  Entanglement-induced Kondo screening in atomic spin chains

Choi, D.-J., Robles, R., Yan, S., Burgess, J. A. J., Rolf-Pissarczyk, S., Gauyacq, J.-P., et al. (in preparation). Entanglement-induced Kondo screening in atomic spin chains.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0029-22B6-8 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0029-22B7-6
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1507.04785.pdf (Preprint), 738KB
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 Creators:
Choi, Deung-Jang1, 2, Author              
Robles, Roberto3, Author
Yan, Shichao1, 2, Author              
Burgess, Jacob A. J.1, 2, Author              
Rolf-Pissarczyk, Steffen1, 2, Author              
Gauyacq, Jean-Pierre4, Author
Lorente, Nicolás5, 6, Author
Ternes, Markus2, Author
Loth, Sebastian1, 2, Author              
Affiliations:
1Dynamics of Nanoelectronic Systems, Independent Research Groups, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_1938290              
2Max Planck Institute for Solid State Research, ou_persistent22              
3ICN2 - Institut Catala de Nanociencia i Nanotecnologia, Campus UAB, 08193 Bellaterra (Barcelona), Spain, ou_persistent22              
4Institut des Sciences Moléculaires d’Orsay, ISMO, Unité Mixte de Recherches CNRS-Université Paris-Sud, UMR 8214,Bâtiment 351, Université Paris-Sud, 91405 Orsay Cedex, France, ou_persistent22              
5Centro de Física de Materiales, CFM/MPC (CSIC-UPV/EHU), Paseo Manuel de Lardizabal 5, 20018 Donostia-San Sebastián, Spain, ou_persistent22              
6Donostia International Physics Center (DIPC), Paseo Manuel de Lardizabal 4, 20018 Donostia-San Sebastián, Spain, ou_persistent22              

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Free keywords: Condensed Matter; Mesoscale and Nanoscale Physics; Strongly Correlated Electrons
 Abstract: Quantum entanglement permeates the complex ground states of correlated electron materials defying single-particle descriptions. Coupled magnetic atoms have potential as model systems for entanglement in condensed matter giving the opportunity to create artificial many-body states which can be controlled by tuning the underlying interactions. They provide an avenue to unravel the complexities of correlated-electron materials. Here we use low temperature scanning tunnelling microscopy (STM) and atomic manipulation to tune entanglement in chains of magnetic atoms. We find that a Kondo singlet state can emerge from this entanglement. The many electron Kondo state is based on the screening of the entangled spin ground state of the chain by substrate electrons and can be engineered to envelop at least ten magnetic atoms. The concomitant Kondo resonance measured in the differential conductance enables the electric read-out of entanglement. By tuning composition and coupling strength within atomic chains it is possible to create model spin chains with defined entanglement. This lays the foundation for a new class of experiments to construct exotic correlated-electron materials atom by atom.

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Language(s): eng - English
 Dates: 2015-07-16
 Publication Status: Not specified
 Pages: 15
 Publishing info: -
 Table of Contents: -
 Rev. Method: No review
 Identifiers: arXiv: 1507.04785
 Degree: -

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