Структурні властивості стекол Ga11.7Ge14.1Te74.2
DOI:
https://doi.org/10.15330/pcss.23.4.830-835Ключові слова:
халькогенідні стекла, рентгеноструктурний аналіз, функція радіального розподілу, Раманівська спектроскопія, нанофазиАнотація
У цій роботі аморфні сплави Ga18Ge20.9Te61.2 досліджено методами рентгенівської дифракції та рамановської спектроскопії. Експериментальні рентгенівські дифрактограми були використані для розрахунків функцій радіального розподілу, які вказують положення довжин зв’язку найближчого сусіда r1 = 2,67 Å і довжини зв’язку другого сусіда r2 = 4,27 Å. Подібні значення r1 спостерігалися для стекол Ga-Ge-Te інших складів. Смуги, які спостерігаються в спектрах комбінаційного розсіювання зразків Ga18Ge20.9Te61.2 показують, що це скло містить різні нанофази, що можна пояснити за допомогою режимів коливань, властивих склам Ga-Te і Ge-Te, а також плівкам. Дослідження композиційних залежностей характерних складових інтенсивностей раманівських смуг, які змінюються зі зміною складу, слід вивчати для отримання кращого розподілу раманівських смуг.
Посилання
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