This title appears in the Scientific Report :
2017
Please use the identifier:
http://dx.doi.org/10.1039/C7NR05097F in citations.
Strain and electric-field control of magnetism in supercrystalline iron oxide nanoparticle–BaTiO 3 composites
Strain and electric-field control of magnetism in supercrystalline iron oxide nanoparticle–BaTiO 3 composites
The manipulation of the magnetism of self-assembled iron oxide nanoparticle (NP) monolayers on top of BaTiO3 (BTO) single crystals is reported. We observe strain induced magnetoelectric coupling (MEC) as shown by measurements of both the magnetization and magneto-electric AC susceptibility (MEACS)....
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Personal Name(s): | Wang, Liming (Corresponding author) |
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Petracic, O. / Kentzinger, E. / Rücker, U. / Heggen, M. / Brückel, Th. / Wei, Xiankui / Schmitz, Markus | |
Contributing Institute: |
Streumethoden; JCNS-2 Mikrostrukturforschung; PGI-5 Physik Nanoskaliger Systeme; ER-C-1 JARA-FIT; JARA-FIT Streumethoden; PGI-4 |
Published in: | Nanoscale, 9 (2017) 35, S. 12957-12962 |
Imprint: |
Cambridge
RSC Publ.
2017
|
DOI: |
10.1039/C7NR05097F |
Document Type: |
Journal Article |
Research Program: |
Jülich Centre for Neutron Research (JCNS) Materials and Processes for Energy and Transport Technologies Quantum Condensed Matter: Magnetism, Superconductivity Controlling Collective States Controlling Collective States |
Publikationsportal JuSER |
The manipulation of the magnetism of self-assembled iron oxide nanoparticle (NP) monolayers on top of BaTiO3 (BTO) single crystals is reported. We observe strain induced magnetoelectric coupling (MEC) as shown by measurements of both the magnetization and magneto-electric AC susceptibility (MEACS). The magnetization, coercivity, remanent magnetization and MEACS signal as a function of temperature show abrupt jumps at the BTO phase transition temperatures. Hereby the jump values are opposite for in-plane and out-of-plane measurements. Grazing incidence small angle X-ray scattering (GISAXS) and scanning electron microscopy (SEM) confirm a hexagonal close-packed supercrystalline order of the NP monolayers. Cross-sectional scanning transmission electron microscopy (STEM) experiments provide information about the layer structure of the sample. This work opens up viable possibilities for fabricating energy-efficient electronic devices by self-assembly techniques. |