GA–GD INTERMETALLIK BIRIKMALARINING KRISTALL TUZILISHI VA MAGNIT XOSSALARINI NAZARIY TADQIQ ETISH
DOI:
https://doi.org/10.47390/ydif-y2026v2i20/n01Kalit so‘zlar:
Gd - Ga birikmalari, gadoliniy, galliy, DFT, kristall tuzilma, shakllanish energiyasi, ferromagnetizm, spin-polarizatsiya, magnit moment.Annotasiya
Ushbu tezisda Gd - Ga tizimiga mansub GdGa, GdGa₂, GdGa₃, GdGa₆, Gd₃Ga va Gd₃Ga₂ intermetallik birikmalarining kristall tuzilishi, termodinamik barqarorligi, zichligi hamda magnit xossalari nazariy hisoblashlar asosida tahlil qilindi. Hisoblashlar zichlik funksionali nazariyasi (DFT) doirasida spin-polarizatsiyalangan holatda amalga oshirildi. Strukturaviy optimallashtirish orqali birikmalarning panjara parametrlari va kristall simmetriyasi aniqlandi. Shakllanish energiyasining manfiy qiymatlari barcha ko‘rib chiqilgan fazalarning termodinamik jihatdan barqaror ekanligini ko‘rsatdi. Magnit xossalarni hisoblash natijasida Gd atomlari konsentratsiyasining ortishi bilan umumiy magnit momentning sezilarli oshishi va ferromagnit tartiblanishning kuchayishi aniqlandi.
Manbalar
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