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Title: Origin of reduced magnetization and domain formation in small magnetite nanoparticles

Journal Article · · Scientific Reports
DOI:https://doi.org/10.1038/srep45997· OSTI ID:1366451
 [1];  [2];  [1];  [3];  [4];  [4];  [5];  [2];  [1];  [4];  [1]
  1. Univ. of York (United Kingdom). Dept. of Physics
  2. SuperSTEM, Daresbury (United Kingdom)
  3. Carnegie Mellon Univ., Pittsburgh, PA (United States). Physics Dept.; Univ. of Electronic Science and Technology of China, Chengdu (China). State Key Laboratory of Electronic Thin Films and Integrated Devices
  4. Carnegie Mellon Univ., Pittsburgh, PA (United States). Physics Dept.
  5. Univ. of Cadiz, Puerto Real (Spain). Dept. of Computer Science and Engineering

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.

Research Organization:
Carnegie Mellon Univ., Pittsburgh, PA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
FG02-08ER46481
OSTI ID:
1366451
Journal Information:
Scientific Reports, Vol. 7; ISSN 2045-2322
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 77 works
Citation information provided by
Web of Science

References (39)

Magneto-resistance and superparamagnetism in magnetite films on MgO and MgAl2O4 journal March 2003
Magnetic Iron Oxide Nanoparticles: Synthesis, Stabilization, Vectorization, Physicochemical Characterizations, and Biological Applications journal June 2008
Atomic-scale structure and properties of highly stable antiphase boundary defects in Fe3O4 journal December 2014
VESTA 3 for three-dimensional visualization of crystal, volumetric and morphology data journal October 2011
Anomalous moment and anisotropy behavior in Fe 3 O 4 films journal April 1996
Preparation and Properties of an Aqueous Ferrofluid journal July 1999
Clinical applications of magnetic nanoparticles for hyperthermia journal January 2008
Surface anisotropy of a Fe3O4 nanoparticle: A simulation approach journal September 2007
Effective anisotropies and energy barriers of magnetic nanoparticles with Néel surface anisotropy journal August 2007
Anomalous Magnetic Properties of Nanoparticles Arising from Defect Structures: Topotaxial Oxidation of Fe 1– x O|Fe 3−δ O 4 Core|Shell Nanocubes to Single-Phase Particles journal July 2013
Preparation of aqueous magnetic liquids in alkaline and acidic media journal March 1981
Origin of the increased resistivity in epitaxial Fe 3 O 4 films journal November 2002
Anti-phase domains and magnetism in epitaxial magnetite layers journal April 1999
Spin-valve behaviour of anti-ferromagnetic boundaries in ultrathin magnetite films journal December 2001
Synthesis of monodisperse iron oxide nanocrystals by thermal decomposition of iron carboxylate salts journal January 2004
Magnetic interactions and covalency effects in mainly ionic compounds journal March 1976
Origin of the Anomalous Magnetic Behavior in Single Crystal Fe 3 O 4 Films journal December 1997
Mössbauer study of the high-temperature phase of Co-substituted magnetites, Co x Fe 3 x O 4 . I. x ≤0.04 journal March 1993
Spin-Polarized Transport across Sharp Antiferromagnetic Boundaries journal June 2002
Magnetic nanoparticles with bulklike properties (invited) journal April 2011
Monodisperse MFe 2 O 4 (M = Fe, Co, Mn) Nanoparticles journal January 2004
Magnetism and the Chemical Bond. John B. Goodenough. Interscience (Wiley), New York, 1963. xvi + 394 pp. Illus. $12.50 journal January 1964
Surfactant Organic Molecules Restore Magnetism in Metal-Oxide Nanoparticle Surfaces journal April 2012
Hydrothermal Synthesis of Monodisperse Magnetite Nanoparticles journal September 2006
Strain relaxation in Fe 3 O 4 / MgAl 2 O 4 heterostructures: Mechanism for formation of antiphase boundaries in an epitaxial system with identical symmetries of film and substrate journal July 2009
Surface Spin Disorder in NiFe 2 O 4 Nanoparticles journal July 1996
Enhanced oxidation of nanoparticles through strain-mediated ionic transport journal November 2013
Theory of Ionic Ordering, Crystal Distortion, and Magnetic Exchange Due to Covalent Forces in Spinels journal April 1955
Synthesis and surface engineering of iron oxide nanoparticles for biomedical applications journal June 2005
Architectured design of superparamagnetic Fe 3 O 4 nanoparticles for application as MRI contrast agents: mastering size and magnetism for enhanced relaxivity journal January 2015
Progress in applications of magnetic nanoparticles in biomedicine journal November 2009
Direct Observation of a Surface Induced Disordering Process in Magnetic Nanoparticles journal September 2009
Advances in ferrofluid technology journal August 1995
Magnetic Iron Oxide Nanoparticles: Synthesis, Stabilization, Vectorization, Physicochemical Characterizations, and Biological Applications journal April 2010
Multivariate statistical analysis as a tool for the segmentation of 3D spectral data journal September 2013
Origin of Surface Canting within Fe 3 O 4 Nanoparticles journal October 2014
Ultra-large-scale syntheses of monodisperse nanocrystals journal November 2004
Lead palladium titanate: A room temperature nanoscale multiferroic thin film journal February 2020
Effective anisotropies and energy barriers of magnetic nanoparticles with Neel surface anisotropy text January 2007

Cited By (13)

Magnetic-Assisted Treatment of Liver Fibrosis journal October 2019
Magnetic small-angle neutron scattering journal March 2019
Magnetic Nanoparticle Chains in Gelatin Ferrogels: Bioinspiration from Magnetotactic Bacteria journal September 2019
Structural and magnetic properties of cobalt iron disulfide (CoxFe1−xS2) nanocrystals journal March 2018
Hybrid Nanostructured Magnetite Nanoparticles: From Bio-Detection and Theragnostics to Regenerative Medicine journal January 2020
Shaping Magnetite Nanoparticles from First Principles journal October 2019
Fabrication of CNT/ION hybrids and their impact on the biomedical applicability of PCL‐based composite films journal August 2018
Surface structure controlling nanoparticle behavior: magnetism of ferrihydrite, magnetite, and maghemite journal January 2018
Internal Structure and Magnetic Properties in Cobalt Ferrite Nanoparticles: Influence of the Synthesis Method journal February 2019
Antiphase boundaries in truncated octahedron-shaped Zn-doped magnetite nanocrystals journal January 2018
The effects of intraparticle structure and interparticle interactions on the magnetic hysteresis loop of magnetic nanoparticles journal July 2019
Mineralogical Evolution of Magnetic Rhodic Oxisols under Different Lithological Influences in Brazil journal January 2019
Vacancy-Driven Noncubic Local Structure and Magnetic Anisotropy Tailoring in Fe x O Fe 3 δ O 4 Nanocrystals journal November 2019

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