Recent Advances in High-Entropy Ferrites: From Precision Synthesis to Cutting-Edge Magnetic Functionalities

Alshammari, Suliman Mubarak; Hamouda, H. M.; Alkadi, Muath; Abouelenein, Mohamed F.; Alshammari, Muhna; Alharbi, Khaled; Gad, Khater A. E.; Elmeshneb, A. E.; Rayan, Abdalrahman M.; Ahmed, Mahrous R.

doi:10.3390/magnetochemistry12100118

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Recent Advances in High-Entropy Ferrites: From Precision Synthesis to Cutting-Edge Magnetic Functionalities

by

Suliman Mubarak Alshammari

¹

,

H. M. Hamouda

^2,*

,

Muath Alkadi

³,

Mohamed F. Abouelenein

⁴,

Muhna Alshammari

⁵

,

Khaled Alharbi

⁵

,

Khater A. E. Gad

⁶,

A. E. Elmeshneb

⁷

,

Abdalrahman M. Rayan

^8,*

and

Mahrous R. Ahmed

⁸

¹

Department of Physics, College of Science, University of Hail, P.O. Box 2440, Hail 81481, Saudi Arabia

²

Department of Management Information Systems, College of Business and Economics, Qassim University, Buraidah, Qassim 52571, Saudi Arabia

³

Department of Physics, College of Science, University of Hafr Al Batin, P.O. Box 1803, Hafr Al Batin 31991, Saudi Arabia

⁴

Department of Insurance and Risk Management, College of Business, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11432, Saudi Arabia

⁵

Nuclear Technologies Institute (NTI), King Abdulaziz City for Science & Technology (KACST), P.O. Box 6086, Riyadh 11442, Saudi Arabia

⁶

Department of Mathematics and Statistics, Nahda University in Beni Suef (NUB), Beni Suef 62511, Egypt

⁷

Department of Physics, College of Science in Yanbu, Taibah University, Yanbu Governorate 46421, Saudi Arabia

⁸

Physics Department, Faculty of Science, Sohag University, Sohag 82524, Egypt

^*

Authors to whom correspondence should be addressed.

Magnetochemistry 2026, 12(10), 118; https://doi.org/10.3390/magnetochemistry12100118

Submission received: 25 July 2026 / Revised: 9 September 2026 / Accepted: 29 September 2026 / Published: 14 October 2026

(This article belongs to the Special Issue Magnetic Materials: From Fundamentals to Cutting-Edge Applications)

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Abstract

Herein, high-entropy ferrites (HEFs) represent a transformative frontier in solid-state chemistry and materials physics, shifting design paradigms from conventional mono- or co-substituted ceramics toward multi-component, single-phase solid solutions. Stabilized by a massive configurational entropy (ΔS_conf > 1.5 R), these systems incorporate five or more principal cations into a single crystalline matrix, such as cubic spinel (Fd3̅m), perovskite, or hexagonal structures. This comprehensive review systematically evaluates recent breakthroughs in HEF design, tracing the continuous lineage from advanced synthesis methodologies, including modified Pechini sol–gel and hydrothermal routes, to local coordination environments and macroscopic functional expressions. We detail how intense local lattice distortions and polyhedral buckling alter metal–oxygen ligand bond parameters, disrupting traditional collinear A-O-B superexchange pathways to induce quantum magnetic frustration, low-temperature spin-glass behavior, and spontaneous exchange bias effects. Beyond fundamental physics, this work highlights the multi-cation “cocktail effect” across cutting-edge applications, emphasizing its role in high-frequency electromagnetic interference (EMI) shielding, multi-redox heterogeneous catalysis, and high-capacity electrochemical energy storage. Finally, we address current computational bottlenecks in Density Functional Theory (DFT+U) simulations and propose a roadmap for accelerating phase stability predictions and magnetic footprint tuning through the integration of high-throughput workflows and closed-loop, data-driven machine learning architectures. By bridging the gap between thermodynamic theory and targeted application, this review provides a foundational framework for the next generation of entropy-stabilized functional devices.

Keywords: high-entropy ferrites (HEFs); spinel ferrites; magnetic anisotropy; exchange interactions; electromagnetic interference (EMI) shielding

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MDPI and ACS Style

Alshammari, S.M.; Hamouda, H.M.; Alkadi, M.; Abouelenein, M.F.; Alshammari, M.; Alharbi, K.; Gad, K.A.E.; Elmeshneb, A.E.; Rayan, A.M.; Ahmed, M.R. Recent Advances in High-Entropy Ferrites: From Precision Synthesis to Cutting-Edge Magnetic Functionalities. Magnetochemistry 2026, 12, 118. https://doi.org/10.3390/magnetochemistry12100118

AMA Style

Alshammari SM, Hamouda HM, Alkadi M, Abouelenein MF, Alshammari M, Alharbi K, Gad KAE, Elmeshneb AE, Rayan AM, Ahmed MR. Recent Advances in High-Entropy Ferrites: From Precision Synthesis to Cutting-Edge Magnetic Functionalities. Magnetochemistry. 2026; 12(10):118. https://doi.org/10.3390/magnetochemistry12100118

Chicago/Turabian Style

Alshammari, Suliman Mubarak, H. M. Hamouda, Muath Alkadi, Mohamed F. Abouelenein, Muhna Alshammari, Khaled Alharbi, Khater A. E. Gad, A. E. Elmeshneb, Abdalrahman M. Rayan, and Mahrous R. Ahmed. 2026. "Recent Advances in High-Entropy Ferrites: From Precision Synthesis to Cutting-Edge Magnetic Functionalities" Magnetochemistry 12, no. 10: 118. https://doi.org/10.3390/magnetochemistry12100118

APA Style

Alshammari, S. M., Hamouda, H. M., Alkadi, M., Abouelenein, M. F., Alshammari, M., Alharbi, K., Gad, K. A. E., Elmeshneb, A. E., Rayan, A. M., & Ahmed, M. R. (2026). Recent Advances in High-Entropy Ferrites: From Precision Synthesis to Cutting-Edge Magnetic Functionalities. Magnetochemistry, 12(10), 118. https://doi.org/10.3390/magnetochemistry12100118

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Recent Advances in High-Entropy Ferrites: From Precision Synthesis to Cutting-Edge Magnetic Functionalities

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