000086448 001__ 86448
000086448 005__ 20200716101514.0
000086448 0247_ $$2doi$$a10.1021/acs.jpcc.8b08988
000086448 0248_ $$2sideral$$a110386
000086448 037__ $$aART-2019-110386
000086448 041__ $$aeng
000086448 100__ $$aLohr, J.
000086448 245__ $$aEffects of Zn Substitution in the Magnetic and Morphological Properties of Fe-Oxide-Based Core-Shell Nanoparticles Produced in a Single Chemical Synthesis
000086448 260__ $$c2019
000086448 5060_ $$aAccess copy available to the general public$$fUnrestricted
000086448 5203_ $$aMagnetic, compositional, and morphological properties of Zn-Fe-oxide core-shell bimagnetic nanoparticles were studied for three samples with 0.00, 0.06, and 0.10 Zn/Fe ratios, as obtained from particle-induced X-ray emission analysis. The bimagnetic nanoparticles were produced in a one-step synthesis by the thermal decomposition of the respective acetylacetonates. The nanoparticles present an average particle size between 25 and 30 nm as inferred from transmission electron microscopy (TEM). High-resolution TEM images clearly show core-shell morphology for the particles in all samples. The core is composed by an antiferromagnetic (AFM) phase with a Wüstite (Fe1-yO) structure, whereas the shell is composed by a ZnxFe3-xO4 ferrimagnetic (FiM) spinel phase. Despite the low solubility of Zn in the Wüstite, electron energy-loss spectroscopy analysis indicates that Zn is distributed almost homogeneously in the whole nanoparticle. This result gives information on the formation mechanisms of the particle, indicating that the Wüstite is formed first, and the superficial oxidation results in the FiM ferrite phase with similar Zn concentration than the core. Magnetization and in-field Mössbauer spectroscopy of the Zn-richest nanoparticles indicate that the AFM phase is strongly coupled to the FiM structure of the ferrite shell, resulting in a bias field (HEB) appearing below TNFeO, with HEB values that depend on the core-shell relative proportion. Magnetic characterization also indicates a strong magnetic frustration for the samples with higher Zn concentration, even at low temperatures.
000086448 536__ $$9info:eu-repo/grantAgreement/EC/H2020/734187/EU/Spin conversion, logic storage in oxide-based electronics/SPICOLOST$$9This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 734187-SPICOLOST
000086448 540__ $$9info:eu-repo/semantics/openAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/
000086448 590__ $$a4.189$$b2019
000086448 591__ $$aCHEMISTRY, PHYSICAL$$b57 / 158 = 0.361$$c2019$$dQ2$$eT2
000086448 591__ $$aNANOSCIENCE & NANOTECHNOLOGY$$b44 / 103 = 0.427$$c2019$$dQ2$$eT2
000086448 591__ $$aMATERIALS SCIENCE, MULTIDISCIPLINARY$$b90 / 314 = 0.287$$c2019$$dQ2$$eT1
000086448 592__ $$a1.477$$b2019
000086448 593__ $$aElectronic, Optical and Magnetic Materials$$c2019$$dQ1
000086448 593__ $$aEnergy (miscellaneous)$$c2019$$dQ1
000086448 593__ $$aSurfaces, Coatings and Films$$c2019$$dQ1
000086448 593__ $$aPhysical and Theoretical Chemistry$$c2019$$dQ1
000086448 593__ $$aNanoscience and Nanotechnology$$c2019$$dQ1
000086448 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000086448 700__ $$aDe Almeida, A.A.
000086448 700__ $$aMoreno, M.S.
000086448 700__ $$aTroiani, H.
000086448 700__ $$0(orcid)0000-0003-1558-9279$$aGoya, G.F.$$uUniversidad de Zaragoza
000086448 700__ $$0(orcid)0000-0002-6116-9331$$aTorres Molina, T.E.
000086448 700__ $$0(orcid)0000-0002-6813-780X$$aFernandez-Pacheco, R.$$uUniversidad de Zaragoza
000086448 700__ $$aWinkler, E.L.
000086448 700__ $$aVasquez Mansilla, M.
000086448 700__ $$aCohen, R.
000086448 700__ $$aNagamine, L.C.C.M.
000086448 700__ $$aRodríguez, L.M.
000086448 700__ $$aFregenal, D.E.
000086448 700__ $$aZysler, R.D.
000086448 700__ $$aLima, E.
000086448 7102_ $$12003$$2395$$aUniversidad de Zaragoza$$bDpto. Física Materia Condensa.$$cÁrea Física Materia Condensada
000086448 773__ $$g123, 2 (2019), 1444-1453$$pJ. phys. chem., C$$tJournal of Physical Chemistry C$$x1932-7447
000086448 8564_ $$s1178636$$uhttps://zaguan.unizar.es/record/86448/files/texto_completo.pdf$$yPostprint
000086448 8564_ $$s408881$$uhttps://zaguan.unizar.es/record/86448/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint
000086448 909CO $$ooai:zaguan.unizar.es:86448$$particulos$$pdriver
000086448 951__ $$a2020-07-16-09:20:58
000086448 980__ $$aARTICLE