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Growth environment dependent phase propagation of ilmenite-hematite (1-x)FeTiO<sub>3</sub>-xFe<sub>2</sub>O<sub>3</sub> films
- Lee, Dooyong;
- Song, Sehwan;
- Kim, Hyeonyu;
- Lee, Hyunkyung;
- Lee, Jisung;
- ... Yoon, Sangmoon;
- 외 9명
WEB OF SCIENCE
1SCOPUS
1초록
We investigated crystal structures, charge ordering, and magnetic properties of ilmenite-hematite (IH) (1-x) FeTiO3-xFe(2)O(3) films grown at various temperatures and oxygen flow rates. The IH solid solution films grown below 650 degrees C without O-2 have weak magnetic moments due to the Fe2+ in the FeTiO3 phase and Fe3+ in the alpha-Fe2O3. The film grown at 650 degrees C without O-2 exhibits the Neel temperature of similar to 60 K and a large magnetic moment due to the Fe2+ ions, resulting from an ordered FeTiO3 phase. Furthermore, the films grown at 650 degrees C under the O-2 have an alpha-Fe2O3 phase separated from FeTiO3 due to excessive O-2 during growth. As a result, the film has weak magnetic moments attributed to Fe3+ in the alpha-Fe2O3 phase. These observations show that the crystal phase and charge ordering are sensitive to the amount of O-2 and responsible for magnetic properties in the ilmenite-hematite system.
키워드
- 제목
- Growth environment dependent phase propagation of ilmenite-hematite (1-x)FeTiO<sub>3</sub>-xFe<sub>2</sub>O<sub>3</sub> films
- 저자
- Lee, Dooyong; Song, Sehwan; Kim, Hyeonyu; Lee, Hyunkyung; Lee, Jisung; Kim, Minjae; Lee, Jinbae; Hwang, Sang Woon; Yoon, Sangmoon; Kim, Younghak; Cho, Chang-woo; Jo, Younjung; Ok, Jong Mok; Chung, Jae-Ho; Park, Sungkyun
- 발행일
- 2025-02
- 유형
- Article
- 권
- 1017