Elucidating the Lithiation Process in Fe3−δO4 Nanoparticles by Correlating Magnetic and Structural Properties - Ulusoy, Seda (Uppsala University. Department Materials Science and Engineering) ; Feygenson, Mikhail (Uppsala University. Department Materials Science and Engineering) ; Thersleff, Thomas (Stockholm University. Department Materials and Environmental Chemistry) ; Uusimaeki, Toni (Stockholm University. Department Materials and Environmental Chemistry) ; Valvo, Mario (Uppsala University. Department Chemistry) ; Gómez Roca, Alejandro (Institut Català de Nanociència i Nanotecnologia) ; Nogués, Josep (Institut Català de Nanociència i Nanotecnologia) ; Svedlindh, Peter (Uppsala University. Department Materials Science and Engineering) ; Salazar-Alvarez, German (Uppsala University. Department Materials Science and Engineering)