通过角度相关软 X 射线吸收光谱研究退火对锌铁氧体薄膜中金属-氧气杂化过程的影响

IF 2.9 4区工程技术 Q2 CHEMISTRY, MULTIDISCIPLINARY

Korean Journal of Chemical Engineering Pub Date : 2025-03-19 DOI:10.1007/s11814-025-00444-x

Subhajit Nandy, Jitendra Pal Singh, Hee Kyoung Kang, Weon Cheol Lim, Sangsul Lee, Keun Hwa Chae

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引用次数: 0

摘要

本文采用角相关近边x射线吸收精细结构（NEXAFS）技术研究了热退火对铁酸锌薄膜中金属(Fe-3d)-氧（O-2p）杂化的影响。采用射频溅射技术在MgO（200）衬底上生长出厚度约100 nm的铁酸锌薄膜。此外，这些生长的薄膜在200、400和600°C的温度下在空气气氛中退火，以改善薄膜的结晶度。对Fe L2、3边和O k边的NEXAFS研究揭示了热退火对铁酸锌薄膜电子结构改性的重要性。对Fe L2,3-edge的角相关NEXAFS研究表明，铁酸锌中金属氧杂化引起的电子结构变化受退火过程中薄膜结晶度的影响。此外，铁酸锌中金属-氧杂化的性质被O - K预边缘角依赖的NEXAFS研究证实。

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Impact of Annealing on Metal–Oxygen Hybridization Process in Zinc Ferrite Thin Films Studied by Angle Dependent Soft X-Ray Absorption Spectroscopy

Herein, we report the impact of thermal annealing on the metal (Fe-3d)-oxygen (O-2p) hybridization in zinc ferrite thin films using the angle-dependent near-edge X-ray absorption fine structure (NEXAFS) technique. Zinc ferrite thin films of thickness ~ 100 nm are grown on MgO (200) substrates using radio frequency sputtering. Further, these as-grown films are annealed at temperatures 200, 400, and 600 °C in an air atmosphere to improve the crystallinity of the films. NEXAFS studies on Fe L_2,3-edge and O K-edge reveal the importance of thermal annealing on the modification of the electronic structure of zinc ferrite films. Angle-dependent NEXAFS studies on Fe L_2,3-edge suggest that the variation in electronic structure caused by the metal–oxygen hybridization in Zinc Ferrite is influenced by the film’s crystallinity through the annealing process. Further, the nature of metal–oxygen hybridization in zinc ferrite is confirmed by the O K pre-edge angle-dependent NEXAFS studies.

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来源期刊

Korean Journal of Chemical Engineering 工程技术-工程：化工

CiteScore

4.60

自引率

11.10%

发文量

310

审稿时长

4.7 months

期刊介绍： The Korean Journal of Chemical Engineering provides a global forum for the dissemination of research in chemical engineering. The Journal publishes significant research results obtained in the Asia-Pacific region, and simultaneously introduces recent technical progress made in other areas of the world to this region. Submitted research papers must be of potential industrial significance and specifically concerned with chemical engineering. The editors will give preference to papers having a clearly stated practical scope and applicability in the areas of chemical engineering, and to those where new theoretical concepts are supported by new experimental details. The Journal also regularly publishes featured reviews on emerging and industrially important subjects of chemical engineering as well as selected papers presented at international conferences on the subjects.