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Unraveling Exchange Coupling in Ferrites Nano-Heterostructures.
Maltoni, Pierfrancesco; Barucca, Gianni; Rutkowski, Bogdan; Spadaro, Maria Chiara; Jönsson, Petra E; Varvaro, Gaspare; Yaacoub, Nader; De Toro, José A; Peddis, Davide; Mathieu, Roland.
Afiliación
  • Maltoni P; Department of Materials Science and Engineering, Uppsala University, Box 35, Uppsala, 751 03, Sweden.
  • Barucca G; Dipartimento di Scienze e Ingegneria della Materia dell'Ambiente ed Urbanistica-SIMAU, Università Politecnica delle Marche, Ancona, 60131, Italy.
  • Rutkowski B; Faculty of Metals Engineering and Industrial Computer Science, AGH University of Science and Technology, Al. A. Mickiewicza 30, Kraków, 30-059, Poland.
  • Spadaro MC; Dipartimento di Scienze e Ingegneria della Materia dell'Ambiente ed Urbanistica-SIMAU, Università Politecnica delle Marche, Ancona, 60131, Italy.
  • Jönsson PE; Department of Physics and Astronomy, Uppsala University, Box 516, Uppsala, SE-751 20, Sweden.
  • Varvaro G; Istituto di Struttura della Materia, nM2-lab, Consiglio Nazionale delle Ricerche, Monterotondo Scalo, Rome, 00015, Italy.
  • Yaacoub N; Institut des Molécules et Matériaux du Mans, CNRS UMR-6283, Le Mans Université, Le Mans, F-72085, France.
  • De Toro JA; Instituto Regional de Investigación Científica Aplicada (IRICA) and Departamento de Física Aplicada, Universidad de Castilla-La Mancha, Ciudad Real, 13071, Spain.
  • Peddis D; Istituto di Struttura della Materia, nM2-lab, Consiglio Nazionale delle Ricerche, Monterotondo Scalo, Rome, 00015, Italy.
  • Mathieu R; Dipartimento di Chimica e Chimica Industriale & INSTM, nM2-Lab, Università degli Studi di Genova, Via Dodecaneso 31, Genova, 1-16146, Italy.
Small ; 20(10): e2304152, 2024 Mar.
Article en En | MEDLINE | ID: mdl-37888807
The magnetic coupling of a set of SrFe12 O19 /CoFe2 O4 nanocomposites is investigated. Advanced electron microscopy evidences the structural coherence and texture at the interfaces of the nanostructures. The fraction of the lower anisotropy phase (CoFe2 O4 ) is tuned to assess the limits that define magnetically exchange-coupled interfaces by performing magnetic remanence, first-order reversal curves (FORCs), and relaxation measurements. By combining these magnetometry techniques and the structural and morphological information from X-ray diffraction, electron microscopy, and Mössbauer spectrometry, the exchange intergranular interaction is evidenced, and the critical thickness within which coupled interfaces have a uniform reversal unraveled.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Small Asunto de la revista: ENGENHARIA BIOMEDICA Año: 2024 Tipo del documento: Article País de afiliación: Suecia Pais de publicación: Alemania
Texto completo
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Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Small Asunto de la revista: ENGENHARIA BIOMEDICA Año: 2024 Tipo del documento: Article País de afiliación: Suecia Pais de publicación: Alemania