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Large tensile-strain-induced monoclinic MB phase in BiFeO3 epitaxial thin films on a PrScO3 substrate

หน่วยงาน Nanyang Technological University, Singapore

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ชื่อเรื่อง : Large tensile-strain-induced monoclinic MB phase in BiFeO3 epitaxial thin films on a PrScO3 substrate
นักวิจัย : Chen, Zuhuang , Qi, Yajun , You, Lu , Yang, Ping , Huang, C. W. , Wang, Junling , Sritharan, Thirumany , Chen, Lang
คำค้น : -
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2556
อ้างอิง : Chen, Z., Qi, Y., You, L., Yang, P., Huang, C. W., Wang, J., et al. (2013). Large tensile-strain-induced monoclinic MB phase in BiFeO3 epitaxial thin films on a PrScO3 substrate. Physical Review B - Condensed Matter and Materials Physics, 88(5), 054114-. , http://hdl.handle.net/10220/18706 , http://dx.doi.org/10.1103/PhysRevB.88.054114
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Physical review B - condensed matter and materials physics
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

Crystal and domain structures, and ferroelectric properties of tensile-strained BiFeO3 epitaxial films grown on orthorhombic (110)o PrScO3 substrates were investigated. All films possess a MB-type monoclinic structure with 109° stripe domains oriented along the [1¯10]o direction. For films thicknesses less than ∼40 nm, the presence of well-ordered domains is proved by the detection of satellite peaks in synchrotron x-ray diffraction studies. For thicker films, only the Bragg reflections from tilted domains were detected. This is attributed to the broader domain size distribution in thicker films. Using planar electrodes, the in-plane polarization of the MB phase is determined to be ∼85 μC/cm2, which is much larger than that of compressive-strained BiFeO3 films. Our results further reveal that the substrate monoclinic distortion plays an important role in determining the stripe domain formation of the rhombohedral ferroic epitaxial thin films, which sheds light on the problem of understanding elastic domain structure evolution in many other functional oxide thin films as well.

บรรณานุกรม :
Chen, Zuhuang , Qi, Yajun , You, Lu , Yang, Ping , Huang, C. W. , Wang, Junling , Sritharan, Thirumany , Chen, Lang . (2556). Large tensile-strain-induced monoclinic MB phase in BiFeO3 epitaxial thin films on a PrScO3 substrate.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Chen, Zuhuang , Qi, Yajun , You, Lu , Yang, Ping , Huang, C. W. , Wang, Junling , Sritharan, Thirumany , Chen, Lang . 2556. "Large tensile-strain-induced monoclinic MB phase in BiFeO3 epitaxial thin films on a PrScO3 substrate".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Chen, Zuhuang , Qi, Yajun , You, Lu , Yang, Ping , Huang, C. W. , Wang, Junling , Sritharan, Thirumany , Chen, Lang . "Large tensile-strain-induced monoclinic MB phase in BiFeO3 epitaxial thin films on a PrScO3 substrate."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2556. Print.
Chen, Zuhuang , Qi, Yajun , You, Lu , Yang, Ping , Huang, C. W. , Wang, Junling , Sritharan, Thirumany , Chen, Lang . Large tensile-strain-induced monoclinic MB phase in BiFeO3 epitaxial thin films on a PrScO3 substrate. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2556.