{"title":"Investigation of Magnetic and Magneto-Optical Properties of Copper Cobalt Ferrite Nanoparticles","authors":"Mohammad Moradi, Asiyeh Rafiee","doi":"10.3103/S0027134925700225","DOIUrl":null,"url":null,"abstract":"<p>In this study, copper cobalt ferrite nanoparticles were synthesized by chemical formula Co<span>\\({}_{1-x}\\)</span>Cu<span>\\({}_{x}\\)</span>Fe<span>\\({}_{2}\\)</span>O<span>\\({}_{4}\\)</span> and (<span>\\(x=0\\)</span>, <span>\\(0.2\\)</span>, <span>\\(0.4\\)</span>, <span>\\(0.6\\)</span>, <span>\\(0.8\\)</span>, <span>\\(1\\)</span>) by coprecipitation method. The X-ray diffraction pattern of the samples confirmed the single-phase spinel structure of the fabricated nanoparticles and the average size of the crystals was calculated from the entire width of the diffraction peak with the highest intensity and Scherrer’sequation. Using transmission electron microscope images, the nanoparticle size was about 10 nm. The magnetic properties of copper cobalt ferrite nanoparticles were measured by Alternative Gradient Force Magnetometer (AGFM) and it was seen that with increasing substitution of copper cations instead of cobalt cations in the samples, the amount of induction decreased and the saturation magnetization first increased and then decreased. In order to investigate the Faraday’s effect on copper cobalt ferrite nanoparticles, the transmittance values were measured using a laboratory experiment and their graphs were plotted in terms of the applied magnetic field, all of which were in agreement with the theory. In addition, transmittance was investigated for two angular positions of the analyzer at <span>\\(-45^{\\circ}\\)</span> and <span>\\(+45^{\\circ}\\)</span> in different fields.</p>","PeriodicalId":711,"journal":{"name":"Moscow University Physics Bulletin","volume":"80 1","pages":"119 - 126"},"PeriodicalIF":0.4000,"publicationDate":"2025-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Moscow University Physics Bulletin","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.3103/S0027134925700225","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PHYSICS, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
In this study, copper cobalt ferrite nanoparticles were synthesized by chemical formula Co\({}_{1-x}\)Cu\({}_{x}\)Fe\({}_{2}\)O\({}_{4}\) and (\(x=0\), \(0.2\), \(0.4\), \(0.6\), \(0.8\), \(1\)) by coprecipitation method. The X-ray diffraction pattern of the samples confirmed the single-phase spinel structure of the fabricated nanoparticles and the average size of the crystals was calculated from the entire width of the diffraction peak with the highest intensity and Scherrer’sequation. Using transmission electron microscope images, the nanoparticle size was about 10 nm. The magnetic properties of copper cobalt ferrite nanoparticles were measured by Alternative Gradient Force Magnetometer (AGFM) and it was seen that with increasing substitution of copper cations instead of cobalt cations in the samples, the amount of induction decreased and the saturation magnetization first increased and then decreased. In order to investigate the Faraday’s effect on copper cobalt ferrite nanoparticles, the transmittance values were measured using a laboratory experiment and their graphs were plotted in terms of the applied magnetic field, all of which were in agreement with the theory. In addition, transmittance was investigated for two angular positions of the analyzer at \(-45^{\circ}\) and \(+45^{\circ}\) in different fields.
本研究采用共沉淀法合成了铜钴铁氧体纳米颗粒,分子式为Co \({}_{1-x}\) Cu \({}_{x}\) Fe \({}_{2}\) O \({}_{4}\)和(\(x=0\), \(0.2\), \(0.4\), \(0.6\), \(0.8\), \(1\))。样品的x射线衍射图证实了制备的纳米颗粒的单相尖晶石结构,并通过衍射峰的全宽度和Scherrer序列计算了晶体的平均尺寸。通过透射电镜图像,纳米颗粒尺寸约为10 nm。采用交替梯度力磁强计(AGFM)对铜钴铁氧体纳米粒子的磁性能进行了测试,结果表明,随着样品中铜阳离子取代钴阳离子的增加,磁感应量减小,饱和磁化强度先增大后减小。为了研究法拉第效应对铜钴铁氧体纳米粒子的影响,通过室内实验测量了其透过率值,并绘制了其随外加磁场变化的曲线,结果与理论一致。此外,还研究了仪器在\(-45^{\circ}\)和\(+45^{\circ}\)两个角度位置在不同领域的透光率。
期刊介绍:
Moscow University Physics Bulletin publishes original papers (reviews, articles, and brief communications) in the following fields of experimental and theoretical physics: theoretical and mathematical physics; physics of nuclei and elementary particles; radiophysics, electronics, acoustics; optics and spectroscopy; laser physics; condensed matter physics; chemical physics, physical kinetics, and plasma physics; biophysics and medical physics; astronomy, astrophysics, and cosmology; physics of the Earth’s, atmosphere, and hydrosphere.