Polymers

Study of Y$_{3-x}$Dy$_x$Fe$_5$O$_{12}$ ($x$ = 0.0, 0.5, 1.0, 1.5, 3.0) ferrite garnet for various applications

A. S. Kamzin^a, J. Xu^b, H. Shen^bc, V. G. Semenov^d, L. S. Kamzina^a, A. V. Kopylov<sup>e

a</sup> Ioffe Institute, St. Petersburg
^b Institute of Crystal Growth, School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai, China
^c State Key Laboratory of Crystal Materials, Shandong University, Ji’nan, China
^d Saint Petersburg State University
^e RITVERC JSC, St. Petersburg

Abstract: A series of single crystals of the Y$_{3-x}$Dy$_x$Fe$_5$O$_{12}$ solid solution ($x$ = 0.0, 0.5, 1.0, 1.5, 3.0) synthesized by the Bridgman method was studied. An X-ray diffractometer was used to characterize the properties of the synthesized crystals. The magnetic properties of the crystals were measured using a vibrating-coil magnetometer. Moessbauer studies were conducted using particles obtained by milling the synthesized single crystals. The phase state, the effect of Dy on the crystal properties, and the distribution of iron ions across sublattices were studied using Moessbauer measurements. The obtained results are important for controlling the properties of rare-earth iron garnets for use in optical switches, uncoupled devices, and biomedical applications.

Keywords: magnetic particles, surface properties, Moessbauer spectroscopy.

Received: 22.10.2025
Revised: 22.10.2025
Accepted: 29.10.2025

DOI: 10.61011/FTT.2025.11.62146.289-25

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