Origin of reduced magnetization and domain formation in small magnetite nanoparticles [electronic resource].
- Washington, D.C. : United States. Dept. of Energy, 2017.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
- Physical Description:
- Article numbers 45,997 : digital, PDF file
- Additional Creators:
- United States. Department of Energy and United States. Department of Energy. Office of Scientific and Technical Information
- Restrictions on Access:
- Free-to-read Unrestricted online access
- We compare the structural, chemical, and magnetic properties of magnetite nanoparticles. Aberration corrected scanning transmission electron microscopy reveals the prevalence of antiphase boundaries in nanoparticles that have significantly reduced magnetization, relative to the bulk. We show that atomistic magnetic modelling of nanoparticles with and without these defects reveal the origin of the reduced moment. Strong antiferromagnetic interactions across antiphase boundaries support multiple magnetic domains even in particles as small as 12–14 nm.
- Report Numbers:
- E 1.99:1366451
- Published through SciTech Connect.
Scientific Reports 7 ISSN 2045-2322 AM
Zlatko Nedelkoski; Demie Kepaptsoglou; Leonardo Lari; Tianlong Wen; Ryan A. Booth; Samuel D. Oberdick; Pedro L. Galindo; Quentin M. Ramasse; Richard F. L. Evans; Sara Majetich; Vlado K. Lazarov.
Carnegie Mellon Univ., Pittsburgh, PA (United States)
- Funding Information:
View MARC record | catkey: 24056745