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Epitaxial Growth of Orthorhombic GaFeO3 Thin Films on SrTiO3 (111) Substrates by Simple Sol-Gel Method
Zhang, Minghui; Yasui, Shintaro; Katayama, Tsukasa; Rao, Badari Narayana; Wen, Haiqin; Pan, Xiuhong; Tang, Meibo; Ai, Fei; Itoh, Mitsuru
2019-01-02
Source PublicationMATERIALS
ISSN1996-1944
Volume12Issue:2
SubtypeArticle
AbstractA Sol-gel method assisted with spin-coating has been successfully used to grow orthorhombic GaFeO3 epitaxial films on SrTiO3 (111) substrates for the first time. The film with Pna2(1) crystal structure has been grown along the c-axis. The rocking curve of (004) reflection shows that the Full-Width at Half-Maximum (FWHM) value could be determined to be 0.230 degrees, indicating good single crystallinity and high quality. X-ray phi scan reveals a three-fold symmetry of the substrate and a six-fold symmetry of the film, respectively. The in-plane domains rotate 60 degrees from each other in the film. Uniform film with dense structure, columnar grains with similar grain size was obtained. The thickness of the film was evaluated to be 170 nm. The roughness value (RMS) measured by AFM was 4.5 nm, revealing a flat film. The in-plane Magnetization versus Magnetic field (M-H) curve at 5 K performs a typical ferri- or ferromagnetic hysteresis loop with a saturated magnetization (M-s) value of 136 emu/cm(3). The Curie temperature could be determined to be 174 K. Compared to Pulsed Laser Deposition (PLD), the sol-gel method can prepare large area films with low cost. These new films show promising applications in multiferroic devices.
KeywordGaFeO3 film epitaxial growth sol-gel method multi-domain structure magnetic property
DOI10.3390/ma12020254
Language英语
WOS Research AreaMaterials Science
PublisherMDPI
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27409
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Zhang, Minghui,Yasui, Shintaro,Katayama, Tsukasa,et al. Epitaxial Growth of Orthorhombic GaFeO3 Thin Films on SrTiO3 (111) Substrates by Simple Sol-Gel Method[J]. MATERIALS,2019,12(2).
APA Zhang, Minghui.,Yasui, Shintaro.,Katayama, Tsukasa.,Rao, Badari Narayana.,Wen, Haiqin.,...&Itoh, Mitsuru.(2019).Epitaxial Growth of Orthorhombic GaFeO3 Thin Films on SrTiO3 (111) Substrates by Simple Sol-Gel Method.MATERIALS,12(2).
MLA Zhang, Minghui,et al."Epitaxial Growth of Orthorhombic GaFeO3 Thin Films on SrTiO3 (111) Substrates by Simple Sol-Gel Method".MATERIALS 12.2(2019).
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