Journal Article

FZJ-2017-06265

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Strain and electric-field control of magnetism in supercrystalline iron oxide nanoparticle–BaTiO 3 composites

Wang, L. (Corresponding author)FZJ* ; Petracic, O.FZJ* ; Kentzinger, E.FZJ* ; Rücker, U.FZJ* ; Heggen, M.FZJ* ; Brückel, T.FZJ* ; Wei, X.FZJ* ; Schmitz, M.FZJ*

2017
RSC Publ. Cambridge

This record in other databases:  

Please use a persistent id in citations: doi:10.1039/C7NR05097F

Abstract: 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.

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Contributing Institute(s):

1. Streumethoden (JCNS-2)
2. Streumethoden (PGI-4)
3. JARA-FIT (JARA-FIT)
4. Physik Nanoskaliger Systeme (ER-C-1)
5. Mikrostrukturforschung (PGI-5)

Research Program(s):

1. 144 - Controlling Collective States (POF3-144) (POF3-144)
2. 524 - Controlling Collective States (POF3-524) (POF3-524)
3. 6212 - Quantum Condensed Matter: Magnetism, Superconductivity (POF3-621) (POF3-621)
4. 6213 - Materials and Processes for Energy and Transport Technologies (POF3-621) (POF3-621)
5. 6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623) (POF3-623)

Appears in the scientific report 2017

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Database coverage:
; Current Contents - Physical, Chemical and Earth Sciences ; IF >= 5 ; JCR ; NCBI Molecular Biology Database ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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