Механические напряжения в тонких пленках цирконата-титаната свинца, сформированных на подложках, отличающихся температурными коэффициентами линейного расширения

Авторы

  • Алсу Равилевна Валеева Физико-технический институт имени А. Ф. Иоффе РАН https://orcid.org/0000-0002-8826-8938
  • Евгений Юрьевич Каптелов Физико-технический институт имени А. Ф. Иоффе РАН https://orcid.org/0000-0002-7423-6943
  • Игорь Петрович Пронин Физико-технический институт имени А. Ф. Иоффе РАН https://orcid.org/0000-0003-3749-8706
  • Станислав Викторович Сенкевич Физико-технический институт имени А. Ф. Иоффе РАН; Российский государственный педагогический университет им. А. И. Герцена https://orcid.org/0000-0002-4503-1412
  • Владимир Петрович Пронин Российский государственный педагогический университет им. А. И. Герцена https://orcid.org/0000-0003-0997-1113

DOI:

https://doi.org/10.33910/2687-153X-2022-3-4-159-166

Ключевые слова:

тонкие сегнетоэлектрические пленки, цирконат-титанат свинца, морфотропная фазовая граница, механические напряжения, внутреннее электрическое поле, самополяризация, эффект Горского

Аннотация

Рассмотрено влияние линейных и изгибных напряжений на величину внутреннего поля и самополяризации в тонких пленках цирконата-титаната свинца (PZT), сформированных методом высокочастотного магнетронного распыления на подложках кремния и ситалла СТ-50. Состав тонких пленок соответствовал области морфотропной фазовой границы. Предположено, что изгибные напряжения в биморфных структурах «тонкая пленка PZT — подложка» приводят к появлению внутреннего электрического поля, вызванного диффузией заряженных кислородных вакансий (эффект Горского в сегнетоэлектриках).

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Опубликован

2022-12-20

Выпуск

Раздел

Condensed Matter Physics