Пожалуйста, используйте этот идентификатор, чтобы цитировать или ссылаться на этот документ:
https://elib.bsu.by/handle/123456789/107100
Заглавие документа: | Enhancement of negative capacitance effect in (CoFeZr)x(CaF2)(100-x) nanocomposite films deposited by ion beam sputtering in argon and oxygen atmosphere |
Авторы: | Koltunowicz, T. N. Zhukowski, P. Bondariev, V. Saad, A. N. Fedotova, J. A. Fedotov, A. K. Milosavljevic, M. Kasiuk, J. V. |
Тема: | ЭБ БГУ::ЕСТЕСТВЕННЫЕ И ТОЧНЫЕ НАУКИ::Физика |
Дата публикации: | дек-2014 |
Издатель: | Elsevier |
Библиографическое описание источника: | Journal of Alloys and Compounds. – 2014. – Vol. 615, Suppl. 1. – P. S361 – S365. |
Аннотация: | The paper presents frequency f and temperature Tp dependences of phase shift angle teta, admittance sigma and capacitance Cp for the as-deposited and annealed (CoFeZr)x(CaF2)(100-x) nanocomposite films deposited by ion-beam sputtering of a compound target in a mixed argon–oxygen gas atmosphere in vacuum chamber. The studied films presented metallic FeCoZr "cores" covered with FeCo-based oxide "shells" embedded into oxygen-free dielectric matrix (fluorite). It was found for the metallic phase content within the range of 52.2 at.% < x < 84.3 at.% in low-f region that H values were negative, while in the high-f region we observed the teta < 0. It was obtained that the f-dependences of capacitance module displayed minimum at the corresponding frequency when the teta(f) crossed its zero line teta = 0. It was also observed that the sigma(Tp) dependence displayed the occurrence of two minima that were related to the values of teta1 = 90 (the first minimum) and of teta2 = 90 (the second one). Some possible reasons of such behavior of (CoFeZr)x(CaF2)(100-x) nanocomposite films are discussed. |
URI документа: | http://elib.bsu.by/handle/123456789/107100 |
Располагается в коллекциях: | Архив статей |
Полный текст документа:
Файл | Описание | Размер | Формат | |
---|---|---|---|---|
Enhancement of negative capacitance effect in (CoFeZr)x(CaF2)(100-x) nanocomposite films deposited by ion beam sputtering in argon and oxygen atmosphere.pdf | 1,33 MB | Adobe PDF | Открыть |
Все документы в Электронной библиотеке защищены авторским правом, все права сохранены.