Preparation, phase stability, and magnetization behavior of high entropy hexaferrites

Vladimir E Zhivulin; Evgeniy A Trofimov; Olga V Zaitseva; Daria P Sherstyuk; Natalya A Cherkasova; Sergey V Taskaev; Denis A Vinnik; Yulia A Alekhina; Nikolay S Perov; Kadiyala C B Naidu; Hassan I Elsaeedy; Mayeen U Khandaker; Daria I Tishkevich; Tatiana I Zubar; Alex V Trukhanov; Sergei V Trukhanov

doi:10.1016/j.isci.2023.107077

Preparation, phase stability, and magnetization behavior of high entropy hexaferrites

iScience. 2023 Jun 13;26(7):107077. doi: 10.1016/j.isci.2023.107077. eCollection 2023 Jul 21.

Authors

Vladimir E Zhivulin¹, Evgeniy A Trofimov¹, Olga V Zaitseva¹, Daria P Sherstyuk¹, Natalya A Cherkasova¹, Sergey V Taskaev², Denis A Vinnik^{1

3}, Yulia A Alekhina^{4

5}, Nikolay S Perov^{4

5}, Kadiyala C B Naidu⁶, Hassan I Elsaeedy⁷, Mayeen U Khandaker^{8

9}, Daria I Tishkevich¹⁰, Tatiana I Zubar¹⁰, Alex V Trukhanov^{10

11}, Sergei V Trukhanov^{10

11}

Affiliations

¹ South Ural State University, 76, Lenin Avenue, Chelyabinsk 454080, Russia.
² Chelyabinsk State University, 129, Bratiev Kashirinykh St, Chelyabinsk 454001, Russia.
³ Laboratory of semiconductor oxide materials, Moscow Institute of Physics and Technology (National Research University), 141701, Institutskiy per. 9, Dolgoprudny, Moscow Region, Russian Federation.
⁴ Magnetism Department, Faculty of Physics, Lomonosov Moscow State University, Leninskie Gory 1-2, Moscow 119991, Russia.
⁵ Research & Educational Center "Smart Materials and Biomedical Applications", Baltic Federal University, Gaidara 6, Kaliningrad 236022, Russia.
⁶ Gitam School of Science, Gitam Deemed to be University Bangalore Campus, Bangalore, Karnataka 562163, India.
⁷ Department of Physics, Faculty of Science, King Khalid University, P.O. Box 9004, Abha, Saudi Arabia.
⁸ Centre for Applied Physics and Radiation Technologies, School of Engineering and Technology, Sunway University, Bandar Sunway, Selangor 47500, Malaysia.
⁹ Department of General Educational Development, Faculty of Science and Information Technology, Daffodil International University, DIU Road, Dhaka 1341, Bangladesh.
¹⁰ Laboratory of Magnetic Films Physics, SSPA "Scientific and Practical Materials Research Centre of NAS of Belarus", 19, P. Brovki St, Minsk 220072, Belarus.
¹¹ Smart Sensors Laboratory, Department of Electronic Materials Technology, National University of Science and Technology MISiS, 4, Leninski Avenue, Moscow 119049, Russia.

Abstract

The polycrystalline SrFe₁₂O₁₉ samples deeply substituted up to at.67% by Al³⁺, Ga³⁺, In³⁺, Co³⁺, and Cr³⁺ cations with a high configurational mixing entropy were prepared by solid-phase synthesis. Phase purity and unit cell parameters were obtained from XRD and analyzed versus the average ionic radius of the iron sublattice. The crystallite size varied around ∼4.5 μm. A comprehensive study of the magnetization was realized in various fields and temperatures. The saturation magnetization was calculated using the Law of Approach to Saturation. The accompanying magnetic parameters were determined. The magnetic crystallographic anisotropy coefficient and the anisotropy field were calculated. All investigated magnetization curves turned out to be nonmonotonic. The magnetic ordering and freezing temperatures were extracted from the ZFC and FC curves. The average size of magnetic clusters varied around ∼350 nm. The high values of the configurational mixing entropy and the phenomenon of magnetic dilution were taken into account.

Keywords: Condensed matter properties; Magnetic materials; Magnetic property.