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231224s2016 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.5b04145
|2 doi
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|a pubmed24n0856.xml
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|a eng
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| 100 |
1 |
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|a Toulemon, Delphine
|e verfasserin
|4 aut
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| 245 |
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|a Enhanced Collective Magnetic Properties in 2D Monolayers of Iron Oxide Nanoparticles Favored by Local Order and Local 1D Shape Anisotropy
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|c 2016
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 14.06.2016
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|a Date Revised 16.02.2016
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Magnetic nanoparticle arrays represent a very attractive research field because their collective properties can be efficiently modulated as a function of the structure of the assembly. Nevertheless, understanding the way dipolar interactions influence the intrinsic magnetic properties of nanoparticles still remains a great challenge. In this study, we report on the preparation of 2D assemblies of iron oxide nanoparticles as monolayers deposited onto substrates. Assemblies have been prepared by using the Langmuir-Blodgett technique and the SAM assisted assembling technique combined to CuAAC "click" reaction. These techniques afford to control the formation of well-defined monolayers of nanoparticles on large areas. The LB technique controls local ordering of nanoparticles, while adjusting the kinetics of CuAAC "click" reaction strongly affects the spatial arrangement of nanoparticles in monolayers. Fast kinetics favor disordered assemblies while slow kinetics favor the formation of chain-like structures. Such anisotropic assemblies are induced by dipolar interactions between nanoparticles as no magnetic field is applied and no solvent evaporation is performed. The collective magnetic properties of monolayers are studied as a function of average interparticle distance, local order and local shape anisotropy. We demonstrate that local control on spatial arrangement of nanoparticles in monolayers significantly strengthens dipolar interactions which enhances collective properties and results in possible super ferromagnetic order
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| 650 |
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|a Journal Article
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| 650 |
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4 |
|a Research Support, Non-U.S. Gov't
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| 700 |
1 |
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|a Liu, Yu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Cattoën, Xavier
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Leuvrey, Cédric
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Bégin-Colin, Sylvie
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Pichon, Benoit P
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 32(2016), 6 vom: 16. Feb., Seite 1621-8
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
1 |
8 |
|g volume:32
|g year:2016
|g number:6
|g day:16
|g month:02
|g pages:1621-8
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| 856 |
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|u http://dx.doi.org/10.1021/acs.langmuir.5b04145
|3 Volltext
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