Magnetic structure of Mn3O4 and Fe3O4 bi-magnetic Core-shell nanoparticles
The magnetic structure of hard-soft (conventional) and soft-hard (inverse) bi-magnetic core-shell nanoparticles based on ferrimagnetic (FiM) soft Fe3O4 and hard FiM Mn3O4 will be investigated by neutron diffraction. XRD, TEM and EELS analyses have revealed the formation of a well established core-shell structure based on cubic spinel soft-FiM Fe3O4 and tetragonal spinel hard-FiM Mn3O4. The magnetic properties confirm the presence of both phases and evidence a strong exchange coupling between both phases. In this study we pretend to compare the influence of the morphology and structure of both magnetic phases (core vs. shell) on their magnetic structure from low to room temperature.
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Alberto López-Ortega; ESTRADER Marta; GOLOSOVSKY Igor; A. G. Roca; NOGUES Josep and PUENTE ORENCH Ines. (2014). Magnetic structure of Mn3O4 and Fe3O4 bi-magnetic Core-shell nanoparticles. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-31-2331
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