بررسی اثر ناخالصی سریوم بر ویژگی‌های مغناطیسی فیلم‌های نازک (نانومتری) گارنت ایتریوم آهن بر بسترهای کوارتز

نویسندگان

دانشگاه آزاد اسلامی واحد اهواز

چکیده

در این پژوهش، لایه­های نازک گارنت ایتریم آهن جانشانی شده با سریم، با فرمول عمومی CexY3-xFe5O12 و با مقادیر (7/0و5/0و3/0و1/0و0x=)، به روش سل- ژل و پوشش چرخشی (spin coating) و عملیات گرمادهی بر بسترهای کوارتز تهیه شد. نمونه­های تهیه شده، برای بررسی ویژگی­های فیزیکی، مورد بررسی قرار گرفتند، اثر ناخالصی Ce بر خواص ساختاری، ریخت­شناسی سطح فیلم و ویژگی­های مغناطیسی به­ترتیب با آنالیز پراش پرتو ایکس (XRD)، میکروسکوپ نیروی اتمی (AFM) و مغناطش سنج ارتعاشی (VSM) مورد بررسی قرار گرفت. تصویر میکروسکوپ نیروی اتمی(AFM) نمونه­های تهیه شده نشان می­دهد که لایه­های نازک دارای سطح پیوسته و هموار هستند.

کلیدواژه‌ها


عنوان مقاله [English]

Effect of cerium doping on the magnetic properties of yttrium iron garnet thin films on quartz substrates

چکیده [English]

In this study, cerium substituted yttrium iron garnet thin films with nominal formulaY3-xCexFe5O12 and different x value  (x = 0,0.1,0.3,0.5,0.7) were fabricated on quartz substrates viasol-gel method and spin coating technique. Samples taken to check physical characteristics. The effect of Ce doping on the structural properties , surface morphology and magnetization of the films were studied respectively by X-ray diffraction analysis (XRD), atomic force microscopy (AFM), and vibrating sample magnetometer (VSM). (AFM) image of annealed samples showed that  the thin films had a smooth and continous surface.

کلیدواژه‌ها [English]

  • Ce:YIG
  • Sol-gel
  • thin layer
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