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    題名: Investigation on structural, magnetic and electronic structure of Gd doped ZnO nanostructures synthesized using sol-gel technique
    作者: Palvinder Kaur;Sanjeev Kumar;Chi Liang Chen;Ying-Ya Hsu;Ting-Shan Chan;Chung-Li Dong;C. Srivastava;Anupinder Singh;S. M. Rao
    日期: 2016/02/22
    上傳時間: 2016-08-15
    出版者: Springer
    摘要: GdxZn1−x O (x = 0, 0.02, 0.04 and 0.06) nanostructures have been synthesized using sol–gel technique and characterized to understand their structural and magnetic properties. X-ray diffraction (XRD) results show that Gd (0, 2, 4 and 6 %)-doped ZnO nanostructures crystallized in the wurtzite structure having space group C3v (P63mc). Photoluminescence and Raman studies of Gd-doped ZnO powder show the formation of singly ionized oxygen vacancies. X-ray absorption spectroscopy reveals that Gd replaces the Zn atoms in the host lattice and maintains the crystal symmetry with slight lattice distortion. Gd L3-edge spectra reveal charge transfer between Zn and Gd dopant ions. O K-edge spectra also depict the charge transfer through the oxygen bridge (Gd–O–Zn). Weak magnetic ordering is observed in all Gd-doped ZnO samples.
    關聯: Applied Physics A 122, pp.161(8pages)
    DOI: 10.1007/s00339-016-9707-5
    顯示於類別:[物理學系暨研究所] 期刊論文

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