DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Material Characterization Study of Magnetite Nanocrystals for RF Sensing

Journal Article · · ACS Omega
ORCiD logo [1];  [2];  [2]; ORCiD logo [2]; ORCiD logo [3];  [4];  [4];  [5]
  1. Johns Hopkins Univ., Baltimore, MD (United States)
  2. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  3. Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
  4. National Inst. of Standards and Technology (NIST), Boulder, CO (United States)
  5. Univ. of New Mexico, Albuquerque, NM (United States)

Magnetite nanocrystals show promise for electrically small gigahertz frequency applications, which could lead to miniaturizing transformer cores and new sensing technologies. This work presents a rigorous radiofrequency characterization of these nanocrystals using vector network analyzer (VNA) ferromagnetic resonance (FMR) measurements. For the first time, two different average diameters of Fe3O4 nanocrystals are investigated (7.3 and 20.2 nm). When the VNA–FMR results were compared to micromagnetic simulations, the magnetic anisotropy (K1) deviated from the ideal mean orientation value of K1/2 to K1/80 for the 7.3 nm nanocrystal. In contrast, the obtained magnetic anisotropy in 20.2 nm nanocrystals slightly deviated to K1/11 due to less structural deformations. These findings resulted in a newly proposed methodology for an approximate simulation based on VNA–FMR measurements. In addition, this work estimates the approximate amount of nanocrystals needed to measure a useful VNA–FMR spectrum.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
89233218CNA000001; NA0003525
OSTI ID:
2472597
Report Number(s):
LA-UR--24-29830
Journal Information:
ACS Omega, Journal Name: ACS Omega Journal Issue: 40 Vol. 9; ISSN 2470-1343
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

References (36)

Development of a high‐sensitivity VNA‐FMR spectrometer with field modulation detection and its application to magnetic characterization journal September 2021
Heating magnetic fluid with alternating magnetic field journal November 2002
From pure superparamagnetism to glass collective state in γ-Fe2O3 nanoparticle assemblies journal August 1999
Enhanced Nanoparticle Size Control by Extending LaMer’s Mechanism journal August 2015
Temperature and Excitation Wavelength Dependence of Surface-Plasmon-Mediated Emission from CdSe Nanocrystals journal October 2010
Temperature Dependence of the Photoluminescence of InP/ZnS Quantum Dots journal May 2008
Intrinsic origin of interfacial second-order magnetic anisotropy in ferromagnet/normal metal heterostructures journal March 2020
Efficient and Sensitive Electrically Small Rectenna for Ultra-Low Power RF Energy Harvesting journal October 2018
An ultra wideband-high spatial resolution-compact electric field sensor based on Lab-on-Fiber technology journal May 2019
The role of faceting and elongation on the magnetic anisotropy of magnetite Fe3O4 nanocrystals journal February 2020
Ultra-high rate of temperature increment from superparamagnetic nanoparticles for highly efficient hyperthermia journal March 2021
Electro-optical measurement of intense electric field on a high energy pulsed power accelerator journal May 2021
Designing magnetic field sensor based on tapered photonic crystal fibre assisted by a ferrofluid journal July 2021
Highly efficient heat-dissipation power driven by ferromagnetic resonance in MFe2O4 (M = Fe, Mn, Ni) ferrite nanoparticles journal March 2022
New Permanent Magnet Materials journal June 1968
Ferromagnetic resonance linewidth in metallic thin films: Comparison of measurement methods journal May 2006
Temperature tunability of photonic crystal fiber filled with Fe3O4 nanoparticle fluid journal January 2011
Photonic crystal fiber injected with Fe3O4 nanofluid for magnetic field detection journal October 2011
Magneto-optical fiber sensor based on bandgap effect of photonic crystal fiber infiltrated with magnetic fluid journal December 2012
Determination of anisotropy constants via fitting of magnetic hysteresis to numerical calculation of Stoner–Wohlfarth model journal August 2021
Magneto-optical sensor based on the bandgap effect of a hollow-core photonic crystal fiber injected with Fe3O4 journal June 2020
Blocking and Freezing of Magnetic Moments for Iron Nitride Fine Particle Systems journal January 1998
Temperature Dependence of the Luminescence Lifetime of Single C d S e / Z n S Quantum Dots journal June 2003
A re-examination of the fundamental limits on the radiation Q of electrically small antennas journal May 1996
Electric Field Sensor Approach to Determine Fidelity and Overmoding Region of GTEM Cell journal February 2023
Calibrating a Radio Frequency Electrooptic Sensor for Field-Relevant Temperature Conditions in a Laboratory Setting journal March 2023
Exchange coupled composite media for perpendicular magnetic recording journal October 2005
Ubermag: Toward More Effective Micromagnetic Workflows journal February 2022
Minimally invasive optical sensors for microwave-electric-field exposure measurements journal April 2021
Magnetic nanoparticles: preparation, physical properties, and applications in biomedicine journal January 2012
Optimizing colormaps with consideration for color vision deficiency to enable accurate interpretation of scientific data journal August 2018
Review of Applications of the Laboratory for Electromagnetic Compatibility Infrastructure journal January 2020
A System for Monitoring of Broadband FMR Phenomenon in Low-Carbon Steel Films Subjected to Deformations journal June 2021
Rapid Prototyping for Nanoparticle-Based Photonic Crystal Fiber Sensors journal June 2024
Magnetic interactions between nanoparticles journal January 2010
A general waveguide circuit theory journal September 1992