Effect of thermal neutron irradiation on CoLaxFe2-xO4 nanoferrites: XRD, FTIR, UV, and VSM spectroscopy

IF 1.4 3区物理与天体物理 Q3 INSTRUMENTS & INSTRUMENTATION

Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms Pub Date : 2025-02-01 DOI:10.1016/j.nimb.2024.165592

Kh. Roumaih , H.A. Aboelkhir , T.M. Meaz , A.I. Ghoneim

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引用次数: 0

Abstract

Cobalt-lanthanum ferrite nanoparticles with the formula CoLa_xFe_2-xO₄ (x = 0.0 and 0.06) were prepared using the co-precipitation method. The structural and physical properties were studied before and after exposure to thermal neutrons. The samples were irradiated at different times and doses using a rabbit system. X-ray powder diffraction (XRD) analysis showed the formation of the cubic spinel phase both before and after irradiation. The cation distribution for all samples was calculated based on the theoretical lattice parameters before and after irradiation. The FTIR spectra revealed two bands, ν_T (580–571 cm⁻¹ for x = 0, and 585–575 cm⁻¹ for x = 0.06) and ν_O (386–359 cm⁻¹ for x = 0, and 383–376 cm⁻¹ for x = 0.06). These bands became broader after irradiation. UV spectroscopy indicated that the increase in energy gap is mainly due to the decrease in particle size caused by the quantum confinement size effect. Vibrating Sample Magnetometer (VSM) measurements at room temperature showed ferrimagnetic behavior for all samples. It was observed that the magnetic properties depended on the radiation dosage.

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来源期刊

Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms 物理-核科学技术

CiteScore

2.80

自引率

7.70%

发文量

231

审稿时长

1.9 months

期刊介绍： Section B of Nuclear Instruments and Methods in Physics Research covers all aspects of the interaction of energetic beams with atoms, molecules and aggregate forms of matter. This includes ion beam analysis and ion beam modification of materials as well as basic data of importance for these studies. Topics of general interest include: atomic collisions in solids, particle channelling, all aspects of collision cascades, the modification of materials by energetic beams, ion implantation, irradiation - induced changes in materials, the physics and chemistry of beam interactions and the analysis of materials by all forms of energetic radiation. Modification by ion, laser and electron beams for the study of electronic materials, metals, ceramics, insulators, polymers and other important and new materials systems are included. Related studies, such as the application of ion beam analysis to biological, archaeological and geological samples as well as applications to solve problems in planetary science are also welcome. Energetic beams of interest include atomic and molecular ions, neutrons, positrons and muons, plasmas directed at surfaces, electron and photon beams, including laser treated surfaces and studies of solids by photon radiation from rotating anodes, synchrotrons, etc. In addition, the interaction between various forms of radiation and radiation-induced deposition processes are relevant.