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بررسی ساختار الکترونی، خواص مغناطیسی و اپتیکی ترکیب تمامهویسلر Cr2ScSb | ||
فصلنامه علمی اپتوالکترونیک | ||
دوره 3، شماره 2 - شماره پیاپی 9، شهریور 1400، صفحه 81-88 اصل مقاله (311.3 K) | ||
نوع مقاله: پژوهشی | ||
شناسه دیجیتال (DOI): 10.30473/jphys.2020.55663.1095 | ||
نویسنده | ||
فاطمه کرمی* | ||
دکتری، فیزیک، دانشگاه آزاد اسلامی واحد خرم آباد، خرم آباد، ایران | ||
چکیده | ||
بر پایه نظریه تابعی چگالی، خواص الکترونی، مغناطیسی و اپتیکی ترکیب تمامهویسلر Cr2ScSb مورد بررسی قرار گرفته است. این ترکیب در ثابت شبکه تعادلی برای منحنی چگالی حالتها یک گاف نیمفلزی به اندازه 07/0 الکترونولت دارد اما در ساختار نواری گاف انرژی مشاهده نمیشود. این ترکیب در حالت فرومغناطیس پایدار میباشد. Cr2ScSb دارای مغناطش کل 4 مگنتون بور میباشد و از رابطه اسلیتر-پائولینگ پیروی میکند. بررسی خواص اپتیکی نشان میدهد که این ترکیب برای استفاده به عنوان جاذب امواج الکترومغناطیسی گزینه مناسبی است. | ||
کلیدواژهها | ||
ترکیب تمامهویسلر؛ خاصیت نیمفلزی؛ خواص اپتیکی؛ اسپینترونیک | ||
عنوان مقاله [English] | ||
Investigation of Electronic structure, Magnetic and Optical Properties of Cr2ScSb Full-Heusler Compound | ||
نویسندگان [English] | ||
Fatemeh Karami | ||
Ph.D., Physics, Islamic Azad University Khoramabad Branch, Khoramabad, Iran | ||
چکیده [English] | ||
on density functional theory the electronic, magnetic and optical properties of the Cr2ScSb full-Heusler compound have been investigated. This compound has half-metallic gap of 0.07 eV at equilibrium lattice constant, but there is no band gap in the band structure.Cr2ScSb is stable in ferromagnet state. The total magnetic moment of Cr2ScSb is 4 μ_B and following the Slater-Pauling rule. Results of the investigation of optical properties showed that this compound is a good choice for use as an electromagnetic waves absorbent. | ||
کلیدواژهها [English] | ||
Full-Heusler compounds, Half-metallic properties, Optical properties, Spintronic | ||
مراجع | ||
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