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Título: | Impact of In3+ cations on structure and electromagnetic state of M−type hexaferrites |
Autor: | Turchenko, Vitalii Alexandrovich; Trukhanov, Sergei Valentnovich; Kostishin, V.G.; Damay, Francua; Porcher, Florence; Klygach, Denis Sergeevich; Vakhitov, Maxim Grigorievich; Matzui, Lyudmila Yur evna; Yakovenko, Olena Sergeevna; Bozzo, Bernat CSIC ORCID; Fina, Ignasi CSIC ORCID CVN ; Almessiere, Munirah Abdullah; Slimani, Yassine; Baykal, Abdulhadi; Zhou, Di; Trukhanov, Alex Valentinovich | Palabras clave: | Doped strontium hexaferrites Magnetic properties Neutron powder diffraction Permeability Permittivity |
Fecha de publicación: | jun-2022 | Editor: | Elsevier | Citación: | Journal of Energy Chemistry 69: 667-676 (2022) | Resumen: | The solid solutions of In3+ doped M−type strontium hexaferrites were produced using a conventional solid-state reaction method, and Rietveld analysis of the neutron diffraction patterns was conducted. In3+ cations occupy octahedral (4fVI and 12 k) and tetrahedral (4fIV) positions (SG = P63/mmc (No. 194)). The average particle size is 837–650 nm. Curie tempearature (TC) of the compounds monotonically decreased down to ∼ 520 K with increasing x. A frustrated magnetic state was detected from ZFC and FC magnetizations. saturation magnetization (Ms) and effective magnetocrystalline anisotropy coefficient (keff) were determined using the law of approach to saturation. A real permittivity (ε/) maximum of ∼ 3.3 at ∼ 45.5 GHz and an imaginary permittivity (ε//) of ∼ 1.6 at ∼ 42.3 GHz were observed for x = 0.1. A real permeability (μ/) maximum of ∼ 1.5 at ∼ 36.2 GHz was observed for x = 0. A μ// imaginary permeability maximum of ∼ 0.8 at ∼ 38.3 GHz was observed for x = 0.1. The interpretation of the results is based on the type of dielectric polarization and the natural ferromagnetic resonance features. | Versión del editor: | http://dx.doi.org/10.1016/j.jechem.2021.12.027 | URI: | http://hdl.handle.net/10261/269517 | DOI: | 10.1016/j.jechem.2021.12.027 | ISSN: | 2095-4956 |
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