Magnetic Composites

A special issue of Journal of Composites Science (ISSN 2504-477X). This special issue belongs to the section "Metal Composites".

Deadline for manuscript submissions: closed (31 March 2021) | Viewed by 1640

Special Issue Editor


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Guest Editor
Department of Physics, National Taiwan Normal University, Taipei, Taiwan
Interests: nanomagnetism; ferroelectric/magnetic heterostructures; magnetic thin films; magnetic insulators; ferrites; multiferroic composites; microwave sintering; spark plasma sintering

Special Issue Information

Dear Colleagues,

Magnetic composite materials constitute a new generation of multifunctional materials that combine the properties of magnetic materials (ferri and/or ferromagnetic particles mixed or embedded in a matrix). Magnetic composites have somewhat gained more attention in recent years, with some of that attention focused on the refinement of nanostructure materials and thin films, which shows promise of offering properties which are superior to those of conventional materials. Composite magnetic materials are especially attractive to manufacturers of small motors and actuators for household and automotive use, as well as to the audio, video, and computer industries.

In recent years, the use of magnetic composites has been trending in the scientific community in physics, materials science and especially in analytical chemistry. In many areas of chemistry, magnetic nanoparticles, hybrid nanomaterials and magnetic composites are used. These are mainly used in the development of sensors and biosensors, separation techniques and sample preparation.

This Special Issue will address all areas of magnetic composites, e.g., manufacturing, characterisation and properties of advanced nanomagnetic composites, including thin films.

Dr. Venkata Ramana Mudinepalli
Guest Editor

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Keywords

  • Nanomagnetism
  • Magnetic thin films
  • Soft magnetic composites
  • Porous magnetic composites
  • Magnetopolymeric materials
  • Electromagnetic composites

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Published Papers (1 paper)

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Research

13 pages, 6722 KiB  
Article
Magnetic Susceptibility of a Nanocomposite Based on an Opal Matrix with Yb2Ti2O7 Particles
by Anatoly B. Rinkevich, Olga V. Nemytova and Dmitry V. Perov
J. Compos. Sci. 2023, 7(3), 97; https://doi.org/10.3390/jcs7030097 - 3 Mar 2023
Cited by 1 | Viewed by 1167
Abstract
The DC and AC magnetic susceptibilities of an opal matrix-based nanocomposite with pyrochlore-structured ytterbium titanate particles up to 60 nm in size have been studied in the range of magnetic fields up to 30 kOe. The measurements were performed at temperatures from 2 [...] Read more.
The DC and AC magnetic susceptibilities of an opal matrix-based nanocomposite with pyrochlore-structured ytterbium titanate particles up to 60 nm in size have been studied in the range of magnetic fields up to 30 kOe. The measurements were performed at temperatures from 2 to 200 K. The temperature dependence of the nanocomposite Yb2Ti2O7 has been found to deviate significantly from the Curie–Weiss law. From the frequency dependence of the AC susceptibility measured in the range from 10 Hz to 10 kHz, the spin relaxation times have been determined, and two relaxation times have been found to be required for the description of the frequency dependence of the susceptibility. The field dependence of the AC susceptibility has been measured. This dependence is proved to be described by the modified Cole–Cole formula. The characteristic fields of the magnetic field dependence of the real part of the susceptibility are determined, the value of the characteristic field being found to increase with increasing temperatures. Full article
(This article belongs to the Special Issue Magnetic Composites)
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