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Magnetic Materials: Recent Advances, Prospects and Challenges

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Materials Science and Engineering".

Deadline for manuscript submissions: closed (15 April 2026) | Viewed by 1418

Editors


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Guest Editor
Department of Materials Sciences and Physical Chemistry, Universitat de Barcelona, 08028 Barcelona, Spain
Interests: radar absortion; magnetic materials; magnetic composites; microwave absorption; stealth technology; nanomaterials

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Guest Editor
Física Matèria Condensada, Universitat de Bercalona, Barcelona, Spain
Interests: magnetism and superconductivitystatistical physics; magnetic nanomaterialsphysics and finance; nonlinear dynamics and chaoscomplex systems physics; liquid physicsgravitation and cosmology; classical general relativityhistory of physics; solids with S

Special Issue Information

Dear Colleagues,

This Special Issue presents a curated collection of contemporary research and future directions in the field of magnetism and magnetic materials. It will feature contributions that span fundamental scientific advances and innovative technological applications.

The Issue will spotlight hot topics such as altermagnetism, magnon dynamics, spintronics, biomedical applications, machine learning in magnetism, and high-frequency applications, reflecting the dynamic and interdisciplinary nature of current research. These areas represent the forefront of magnetic materials science, where novel physical phenomena and device concepts are rapidly evolving.

In addition to exploring new magnetic phases and mechanisms, the Special Issue will highlight experimental breakthroughs and theoretical insights that are driving progress in magnetic sensing, logic devices, and energy-efficient information technologies. Contributions may also address the integration of magnetic materials into hybrid systems and multifunctional platforms, expanding their relevance across diverse fields.

By bringing together perspectives from physics, materials science, and engineering, this Special Issue aims to foster cross-disciplinary dialogue and accelerate innovation. Researchers are invited to submit original articles, reviews, and perspectives that explore both the challenges and opportunities shaping the future of magnetism.

Dr. Jaume Calvo-de La Rosa
Prof. Dr. Antoni García-Santiago
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-anonymized peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • altermagnetism
  • magnon dynamics and spin waves
  • ultrafast magnetism
  • spintronics and MRAM
  • magnetic nanomaterials for biomedical applications
  • machine learning for magnetic material discovery
  • alternatives to rare-earth magnets
  • high-frequency magnetic materials
  • radar-absorbing magnetic composites

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Published Papers (2 papers)

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Research

11 pages, 2840 KB  
Article
Exploring Interfacial Effects in Transition Metal Dichalcogenide/Ferrimagnetic Alloy Heterostructures
by Leonardo Ramos, Ayomipo Israel Ojo, Yasinthara Wadumesthri, Ibrahim Almuhanna, Humberto Rodriguez Gutierrez and Darío A. Arena
Appl. Sci. 2026, 16(10), 4828; https://doi.org/10.3390/app16104828 - 12 May 2026
Viewed by 328
Abstract
Ultrathin ferrimagnetic heterostructures have emerged as promising platforms for next-generation spintronic devices, yet the role of two-dimensional substrates in modulating their magnetic properties remains underexplored. Here, we report a comprehensive study of the thickness- and temperature-dependent magnetic behavior of amorphous Fe73Co [...] Read more.
Ultrathin ferrimagnetic heterostructures have emerged as promising platforms for next-generation spintronic devices, yet the role of two-dimensional substrates in modulating their magnetic properties remains underexplored. Here, we report a comprehensive study of the thickness- and temperature-dependent magnetic behavior of amorphous Fe73Co8Gd19 films (4–32 nm) deposited on Si, WSe2 bilayer, and WSe2 monolayer substrates. Structural integrity and stoichiometry were confirmed via X-Ray Diffraction (XRD), X-Ray Reflectivity (XRR), Raman spectroscopy, and Energy-Dispersive Spectroscopy (EDS) analysis. In-plane magnetometry from 10–300 K reveals that monolayer WSe2 promotes stronger interfacial spin alignment, with the 4 nm film exhibiting a sharp increase in coercivity below 50 K, where Hc exceeds 23 mT and even surpasses thicker counterparts, alongside enhanced saturation magnetization (∼790 kA/m at 100 K). This dramatic enhancement of coercivity is the most significant result of this work, underscoring the dominant role of interfacial coupling in governing low-temperature magnetic hardness. Conversely, films on bilayer exhibit suppressed magnetization and soft magnetic behavior (Hc < 10 mT) across all temperatures, making them attractive for ultralow-power and high-speed spintronic applications. These findings demonstrate that atomically thin WSe2 interfaces can modulate coercivity, magnetization, and squareness through proximity effects, establishing a tunable and thermally stable platform for spintronic device applications. Full article
(This article belongs to the Special Issue Magnetic Materials: Recent Advances, Prospects and Challenges)
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17 pages, 3489 KB  
Article
Microwave Absorption in Ceramic Nanocomposites with Magnetic Random Anisotropy
by Jaume Calvo-de la Rosa, Antoni García-Santiago, Joan Manel Hernàndez, Marc Vazquez-Aige, Jose Maria Lopez-Villegas and Javier Tejada
Appl. Sci. 2026, 16(7), 3188; https://doi.org/10.3390/app16073188 - 26 Mar 2026
Cited by 1 | Viewed by 505
Abstract
This study presents experimental evidence of random magnetic behavior in modified barium hexaferrites. We demonstrate a significant shift in the magnetic properties of these materials upon the incorporation of divalent cations (Ni2+, Cu2+, Mn2+), which produces the [...] Read more.
This study presents experimental evidence of random magnetic behavior in modified barium hexaferrites. We demonstrate a significant shift in the magnetic properties of these materials upon the incorporation of divalent cations (Ni2+, Cu2+, Mn2+), which produces the formation of ceramic nanocomposites. X-ray diffraction, scanning electron microscopy, and laser diffraction reveal that these systems comprise micron-sized clusters formed by sintering polycrystalline nanoparticles. The cation incorporation occurs randomly across each sample, creating conditions conducive to random anisotropy magnetism. We confirm this behavior in our samples by fitting the magnetization data near saturation to a corresponding theoretical model. Additionally, we investigate the microwave absorption capabilities of these systems in the GHz range by calculating the reflection loss coefficient of mm-thick samples using transmission-line theory. The results predict broad (up to 2 GHz) and high (around 60 dB on average) absorption signals. In the case of the thinnest samples (1–2 mm), the Cu-substituted system presents broader absorption bandwidths than the pure hexaferrite and, therefore, proves to be more efficient for stealth applications in lightweight sectors. These findings suggest ceramic nanocomposites are promising candidates for random anisotropy magnets, highlighting their potential as efficient microwave absorbers, consistent with recent theoretical predictions. Full article
(This article belongs to the Special Issue Magnetic Materials: Recent Advances, Prospects and Challenges)
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