English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 62567/95223 (66%)
造訪人次 : 2520512      線上人數 : 265
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
搜尋範圍 查詢小技巧:
  • 您可在西文檢索詞彙前後加上"雙引號",以獲取較精準的檢索結果
  • 若欲以作者姓名搜尋,建議至進階搜尋限定作者欄位,可獲得較完整資料
  • 進階搜尋
    請使用永久網址來引用或連結此文件: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/27512

    題名: Structural and Magnetic Properties of (R0.5A0.5)NiO3 Perovskites (R = Gd, Yb and A = Ce, Th)
    作者: Chen, J. W.;Liu, H. M.;高惠春;Kao, H. C. I.;Sheu, H. S.;Lee, J. F.;Ling, D. C.;彭維鋒;Pong, Way-faung;Horng , L.
    貢獻者: 淡江大學物理學系;淡江大學化學學系
    日期: 2007-07-20
    上傳時間: 2009-12-31 10:13:54 (UTC+8)
    出版者: World Scientific Publishing
    摘要: Four perovskite compounds with nominal compositions of (Gd0.5Th0.5)NiO3, (Gd0.5Ce0.5)NiO3, (Yb0.5Th0.5)NiO3 and (Yb0.5Ce0.5)NiO3 were prepared by a polymeric citrate precursor method. They were either slow-cooled in the furnace or quenched to room temperature. All of them have monoclinic symmetry. Quenched samples have a slightly bigger unit cell volume and longer Ni-O bond length, and a smaller grain size than that of the furnace-cooled compounds. All samples are paramagnetic insulators in the range of 2 K to 300 K. The Th containing compounds have larger tolerance factor and Ni(1)–O(1)–Ni(2) bond angle than that of the Ce containing compounds. No mixed valence of Ce, Th and Ni is observed in these samples.
    關聯: International Journal of Modern Physics B 21(18-19), pp.3443-3447
    DOI: 10.1142/S0217979207044718
    顯示於類別:[物理學系暨研究所] 期刊論文
    [化學學系暨研究所] 期刊論文


    檔案 大小格式瀏覽次數



    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - 回饋