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Title: Modeling inter-particle magnetic correlations in magnetite nanoparticle assemblies using x-ray magnetic scattering data

Journal Article · · AIP Advances
DOI: https://doi.org/10.1063/1.5080155 · OSTI ID:1528776
ORCiD logo [1];  [1];  [1];  [1];  [1];  [2];  [3];  [1];  [1]
  1. Brigham Young Univ., Provo, UT (United States). Dept. of Physics and Astronomy
  2. Brigham Young Univ., Provo, UT (United States). Dept. of Chemistry and Biochemistry
  3. SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Institute for Materials and Energy Science (SIMES)

Magnetic nanoparticles are increasingly used in nanotechnologies and biomedical applications, such as drug targeting, MRI, bio-separation. Magnetite (Fe3O4) nanoparticles stand to be effective in these roles due to the non-toxic nature of magnetite and its ease of manufacture. To be more effective in these applications, a greater understanding of the magnetic behavior of a collection of magnetite nanoparticles is needed. This research seeks to discover the local magnetic ordering of ensembles of magnetite nanoparticles occurring under various external fields. To complete this study, we use x-ray resonant magnetic scattering (XRMS). Here we discuss the modeling of the magnetic scattering data using a one-dimensional chain of nanoparticles with a mix of ferromagnetic, anti-ferromagnetic, and random orders. By fitting the model to the experimental data, we extracted information about the magnetic correlations in the nanoparticle assembly.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-76SF00515
OSTI ID:
1528776
Journal Information:
AIP Advances, Vol. 9, Issue 3; ISSN 2158-3226
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 5 works
Citation information provided by
Web of Science

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Cited By (1)

Size-dependent spatial magnetization profile of manganese-zinc ferrite M n 0.2 Z n 0.2 F e 2.6 O 4 nanoparticles journal October 2019