000118008 001__ 118008
000118008 005__ 20240319080944.0
000118008 0247_ $$2doi$$a10.1002/SMLL.202107426
000118008 0248_ $$2sideral$$a129128
000118008 037__ $$aART-2022-129128
000118008 041__ $$aeng
000118008 100__ $$aMuzzi, Beatrice
000118008 245__ $$a3d Metal doping of Core@shell Wüstite@ferrite nanoparticles as a promising route toward room temperature exchange bias magnets
000118008 260__ $$c2022
000118008 5060_ $$aAccess copy available to the general public$$fUnrestricted
000118008 5203_ $$aNanometric core@shell wüstite@ferrite (Fe1−xO@Fe3O4) has been extensively studied because of the emergence of exchange bias phenomena. Since their actual implementation in modern technologies is hampered by the low temperature at which bias is operating, the critical issue to be solved is to obtain exchange-coupled antiferromagnetic@ferrimagnetic nanoparticles (NPs) with ordering temperature close to 300 K by replacing the divalent iron with other transition-metal ions. Here, the effect of the combined substitution of Fe(II) with Co(II) and Ni(II) on the crystal structure and magnetic properties is studied. To this aim, a series of 20 nm NPs with a wüstite-based core and a ferrite shell, with tailored composition, (Co0.3Fe0.7O@Co0.8Fe2.2O4 and Ni0.17Co0.21Fe0.62O@Ni0.4Co0.3Fe2.3O4) is synthetized through a thermal-decomposition method. An extensive morphological and crystallographic characterization of the obtained NPs shows how a higher stability against the oxidation process in ambient condition is attained when divalent cation doping of the iron oxide lattice with Co(II) and Ni(II) ions is performed. The dual-doping is revealed to be an efficient way for tuning the magnetic properties of the final system, obtaining Ni-Co doped iron oxide core@shell NPs with high coercivity (and therefore, high energy product), and increased antiferromagnetic ordering transition temperature, close to room temperature.
000118008 536__ $$9info:eu-repo/grantAgreement/EC/H2020/720853/EU/Anisometric permanent hybrid magnets based on inexpensive and non-critical materials/AMPHIBIAN$$9This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 720853-AMPHIBIAN
000118008 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000118008 590__ $$a13.3$$b2022
000118008 592__ $$a3.395$$b2022
000118008 591__ $$aCHEMISTRY, PHYSICAL$$b19 / 161 = 0.118$$c2022$$dQ1$$eT1
000118008 591__ $$aMATERIALS SCIENCE, MULTIDISCIPLINARY$$b29 / 343 = 0.085$$c2022$$dQ1$$eT1
000118008 591__ $$aNANOSCIENCE & NANOTECHNOLOGY$$b15 / 107 = 0.14$$c2022$$dQ1$$eT1
000118008 591__ $$aPHYSICS, CONDENSED MATTER$$b7 / 67 = 0.104$$c2022$$dQ1$$eT1
000118008 591__ $$aCHEMISTRY, MULTIDISCIPLINARY$$b18 / 178 = 0.101$$c2022$$dQ1$$eT1
000118008 591__ $$aPHYSICS, APPLIED$$b11 / 160 = 0.069$$c2022$$dQ1$$eT1
000118008 593__ $$aBiomaterials$$c2022$$dQ1
000118008 593__ $$aBiotechnology$$c2022$$dQ1
000118008 593__ $$aChemistry (miscellaneous)$$c2022$$dQ1
000118008 593__ $$aNanoscience and Nanotechnology$$c2022$$dQ1
000118008 593__ $$aMaterials Science (miscellaneous)$$c2022$$dQ1
000118008 593__ $$aMedicine (miscellaneous)$$c2022$$dQ1
000118008 593__ $$aEngineering (miscellaneous)$$c2022$$dQ1
000118008 594__ $$a19.0$$b2022
000118008 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000118008 700__ $$aAlbino, Martin
000118008 700__ $$aPetrecca, Michele
000118008 700__ $$aInnocenti, Claudia
000118008 700__ $$aFernández, César de Julián
000118008 700__ $$aBertoni, Giovanni
000118008 700__ $$0(orcid)0000-0003-0602-492X$$aMarquina, Clara
000118008 700__ $$0(orcid)0000-0003-0681-8260$$aIbarra, Manuel Ricardo$$uUniversidad de Zaragoza
000118008 700__ $$aSangregorio, Claudio
000118008 7102_ $$12003$$2395$$aUniversidad de Zaragoza$$bDpto. Física Materia Condensa.$$cÁrea Física Materia Condensada
000118008 773__ $$g18, 16 (2022), 2107426 [11 pp.]$$pSmall$$tSmall$$x1613-6810
000118008 8564_ $$s2379937$$uhttps://zaguan.unizar.es/record/118008/files/texto_completo.pdf$$yVersión publicada
000118008 8564_ $$s2460324$$uhttps://zaguan.unizar.es/record/118008/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000118008 909CO $$ooai:zaguan.unizar.es:118008$$particulos$$pdriver
000118008 951__ $$a2024-03-18-12:28:52
000118008 980__ $$aARTICLE