Radiation-Induced Changes in the Structure and Magnetic Properties of Barium Hexaferrite

IF 0.48 Q4 Physics and Astronomy

Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-05-26 DOI:10.1134/S1062873825710839

E. D. Shipkova, N. S. Perov, R. A. Makaryin, A. Yu. Punda, V. E. Zhivulin, D. A. Vinnik, M. K. Salakhitdinova, E. M. Ibragimova, A. B. Granovskiy

引用次数: 0

Abstract

The effect of gamma irradiation and electron irradiation on the crystal structure and magnetic properties of barium hexaferrite BaFe₁₂O₁₉ (solid-phase synthesis) was studied. Irradiations caused changes in the ratio of crystalline phases and crystallite sizes, which resulted in changes in the main parameters of the hysteresis loop: coercive force, residual magnetization, saturation magnetization. These characteristics change nonmonotonically with varying dose, especially immediately after irradiation. In particular, the saturation magnetization measured at 300 K after γ-irradiation of the sample with a dose of 2.1 × 10⁷ R decreased from the initial value of 52.5 to ∼40.2 emu/g.

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辐射诱导六铁氧体钡结构和磁性能的变化

研究了γ辐照和电子辐照对六铁体钡（固相合成）BaFe12O19晶体结构和磁性能的影响。辐照引起晶相比和晶粒尺寸的变化，从而导致磁滞回线的主要参数：矫顽力、剩余磁化强度、饱和磁化强度发生变化。这些特性随剂量变化而非单调变化，特别是在照射后立即发生变化。特别是，样品经2.1 × 107 R γ辐照后，在300 K下测得的饱和磁化强度从初始值52.5 emu/g下降到~ 40.2 emu/g。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Bulletin of the Russian Academy of Sciences: Physics Physics and Astronomy-Physics and Astronomy (all)

CiteScore

0.90

自引率

0.00%

发文量

251

期刊介绍： Bulletin of the Russian Academy of Sciences: Physics is an international peer reviewed journal published with the participation of the Russian Academy of Sciences. It presents full-text articles (regular, letters to the editor, reviews) with the most recent results in miscellaneous fields of physics and astronomy: nuclear physics, cosmic rays, condensed matter physics, plasma physics, optics and photonics, nanotechnologies, solar and astrophysics, physical applications in material sciences, life sciences, etc. Bulletin of the Russian Academy of Sciences: Physics focuses on the most relevant multidisciplinary topics in natural sciences, both fundamental and applied. Manuscripts can be submitted in Russian and English languages and are subject to peer review. Accepted articles are usually combined in thematic issues on certain topics according to the journal editorial policy. Authors featured in the journal represent renowned scientific laboratories and institutes from different countries, including large international collaborations. There are globally recognized researchers among the authors: Nobel laureates and recipients of other awards, and members of national academies of sciences and international scientific societies.