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Interaction Effects in Assembly of Magnetic Nanoparticles

Overview of attention for article published in Nanoscale Research Letters, August 2017
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Title
Interaction Effects in Assembly of Magnetic Nanoparticles
Published in
Nanoscale Research Letters, August 2017
DOI 10.1186/s11671-017-2263-x
Pubmed ID
Authors

N. A. Usov, O. N. Serebryakova, V. P. Tarasov

Abstract

A specific absorption rate of a dilute assembly of various random clusters of iron oxide nanoparticles in alternating magnetic field has been calculated using Landau-Lifshitz stochastic equation. This approach simultaneously takes into account both the presence of thermal fluctuations of the nanoparticle magnetic moments and magneto-dipole interaction between the nanoparticles of the clusters. It is shown that for usual 3D clusters, the intensity of the magneto-dipole interaction is determined mainly by the cluster packing density η = N p V/V cl , where N p is the average number of the particles in the cluster, V is the nanoparticle volume, and V cl is the cluster volume. The area of the low frequency hysteresis loop and the assembly-specific absorption rate have been found to be considerably reduced when the packing density of the clusters increases in the range of 0.005 ≤ η < 0.4. The dependence of the specific absorption rate on the mean nanoparticle diameter is retained with an increase of η, but becomes less pronounced. For fractal clusters of nanoparticles, which arise in biological media, in addition to a considerable reduction of the absorption rate, the absorption maximum is shifted to smaller particle diameters. It is found also that the specific absorption rate of fractal clusters increases appreciably with an increase of the thickness of nonmagnetic shells at the nanoparticle surfaces.

Twitter Demographics

The data shown below were collected from the profile of 1 tweeter who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 53 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 53 100%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 10 19%
Researcher 8 15%
Lecturer > Senior Lecturer 6 11%
Student > Master 6 11%
Student > Bachelor 5 9%
Other 12 23%
Unknown 6 11%
Readers by discipline Count As %
Physics and Astronomy 17 32%
Materials Science 8 15%
Engineering 5 9%
Chemistry 5 9%
Unspecified 4 8%
Other 6 11%
Unknown 8 15%

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 07 August 2017.
All research outputs
#12,156,729
of 13,722,278 outputs
Outputs from Nanoscale Research Letters
#493
of 836 outputs
Outputs of similar age
#228,032
of 267,285 outputs
Outputs of similar age from Nanoscale Research Letters
#1
of 1 outputs
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