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DOI | 10.1039/C9NR02314C | ||||
Año | 2019 | ||||
Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
Knowing the interactions controlling aggregation processes in magnetic nanoparticles is of strong interest in preventing or promoting nanoparticles' aggregation at wish for different applications. Dipolar magnetic interactions, proportional to the particle volume, are identified as the key driving force behind the formation of macroscopic aggregates for particle sizes above about 20 nm. However, aggregates' shape and size are also strongly influenced by topological ordering. 1-D macroscopic chains of several micrometer lengths are obtained with cube-shaped magnetic nanoparticles prepared by the gas-aggregation technique. Using an analytical model and molecular dynamics simulations, the energy landscape of interacting cube-shaped magnetic nanoparticles is analysed revealing unintuitive dependence of the force acting on particles with the displacement and explaining pathways leading to their assembly into long linear chains. The mechanical behaviour and magnetic structure of the chains are studied by a combination of atomic and magnetic force measurements, and computer simulation. The results demonstrate that [111] magnetic anisotropy of the cube-shaped nanoparticles strongly influences chain assembly features.
Ord. | Autor | Género | Institución - País |
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1 | Balcells, Lluis | Hombre |
CSIC - España
CSIC - Instituto de Ciencia de Materiales de Barcelona (ICMAB) - España |
2 | Stankovic, Igor | Hombre |
Univ Belgrade - Serbia
University of Belgrade - Serbia |
3 | Konstantinovic, Zorica | Mujer |
Univ Belgrade - Serbia
University of Belgrade - Serbia |
4 | Alagh, Aanchal | - |
CSIC - España
CSIC - Instituto de Ciencia de Materiales de Barcelona (ICMAB) - España |
5 | Fuentes, Victor | Hombre |
CSIC - España
CSIC - Instituto de Ciencia de Materiales de Barcelona (ICMAB) - España |
6 | Lopez-Mir, Laura | Mujer |
CSIC - España
CSIC - Instituto de Ciencia de Materiales de Barcelona (ICMAB) - España |
7 | Oro, Judit | Mujer |
CSIC - España
CSIC - Instituto de Ciencia de Materiales de Barcelona (ICMAB) - España |
8 | Mestres, Narcis | Hombre |
CSIC - España
CSIC - Instituto de Ciencia de Materiales de Barcelona (ICMAB) - España |
9 | Garcia-Argos, C. | Mujer |
Universidad Técnica Federico Santa María - Chile
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10 | Pomar, A. | Hombre |
CSIC - España
CSIC - Instituto de Ciencia de Materiales de Barcelona (ICMAB) - España |
11 | Martinez, Brezo | Hombre |
CSIC - España
CSIC - Instituto de Ciencia de Materiales de Barcelona (ICMAB) - España |
Fuente |
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CONICYT |
Ministerio de Economía y Competitividad |
Comisión Nacional de Investigación Científica y Tecnológica |
European Commission |
European Regional Development Fund |
Spanish Ministry of Economy and Competitiveness |
Comisión Nacional de Investigación CientÃfica y Tecnológica |
Consejo Nacional de Innovacion, Ciencia y Tecnologia |
CONICYT PIA/BASAL |
Horizon 2020 Framework Programme |
Spanish Ministry of Economy and Competitiveness through the Severo Ochoa Programme for Centres of Excellence in RD |
Ministry of Education, Science, and Technological Development of Republic of Serbia |
European Commission H2020 project DAFNEOX |
Ministarstvo Prosvete, Nauke i Tehnoloskog Razvoja |
Ministarstvo Prosvete, Nauke i Tehnološkog Razvoja |
European Commission H2020 |
Agradecimiento |
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The authors acknowledge the financial support from European Commission H2020 project DAFNEOX (Grant No. 645658). I. S. and Z. K. acknowledge the support of Ministry of Education, Science, and Technological Development of Republic of Serbia - projects ON171017 and III45018. Financial support from Spanish Ministry of Economy and Competitiveness through the Severo Ochoa Programme for Centres of Excellence in R&D (SEV-2015-0496), RTI2018-099960-B-I00, and MAT2015-71664-R, co-financed by the European Regional Development Fund, is gratefully acknowledged. I.S. and C.G. acknowledge the financial support received from Proyecto CONICYT PIA/Basal FB 0821 and CONICYT MEC80170122. A.P., V.F. and Z.K. thank Senzor-INFIZ (Serbia) for the cooperation provided during their respective secondments. Numerical calculations were run on the PARADOX supercomputing facility at the Scientific Computing Laboratory of the Institute of Physics Belgrade. |
The authors acknowledge the financial support from European Commission H2020 project DAFNEOX (Grant No. 645658). I. S. and Z. K. acknowledge the support of Ministry of Education, Science, and Technological Development of Republic of Serbia – projects ON171017 and III45018. Financial support from Spanish Ministry of Economy and Competitiveness through the Severo Ochoa Programme for Centres of Excellence in R&D (SEV-2015-0496), RTI2018-099960-B-I00, and MAT2015-71664-R, co-financed by the European Regional Development Fund, is gratefully acknowledged. I.S. and C.G. acknowledge the financial support received from Proyecto CONICYT PIA/Basal FB 0821 and CONICYT MEC80170122. A.P., V.F. and Z.K. thank Senzor-INFIZ (Serbia) for the cooperation provided during their respective secondments. Numerical calculations were run on the PARADOX supercomputing facility at the Scientific Computing Laboratory of the Institute of Physics Belgrade. |