English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 46833/50693 (92%)
造訪人次 : 11846520      線上人數 : 627
RC Version 6.0 © Powered By DSPACE, MIT. Enhanced by NTU 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
    主頁登入上傳說明關於CCUR管理 到手機版


    請使用永久網址來引用或連結此文件: https://irlib.pccu.edu.tw/handle/987654321/3012


    題名: Phase stability study of La1.2Ca1.8Mn2O7
    作者: Shen CH
    Liu RS
    Lin JG
    Huang CY
    貢獻者: 材料所
    關鍵詞: inorganic compounds
    oxides
    magnetic materials
    crystal structure
    日期: 2001
    上傳時間: 2009-12-11 11:34:42 (UTC+8)
    摘要: We report that the composition of La1.2Ca1.8Mn2O7 does not form as a single phase, and consists of a mixture: of La0.6Ca0.4MnO3 and CaO. The XRD patterns show the presence of a peak at 2 theta similar to 37 degrees, which is a specific peak to indicate the existence of CaO with space group Fm3m and a unit cell of a = 4.8152(3) Angstrom. After a few days, the intensity of this peak decreases and CaO transforms to Ca(OH),. The electrical and magnetic measurements show that the colossal magnetoresistance (CMR) behavior corresponds to that exhibited by La0.6Ca0.4MnO3. (C) 2001 Elsevier Science Ltd. All rights reserved.
    關聯: MATERIALS RESEARCH BULLETIN Volume: 36 Issue: 5-6 Pages: 1139-1148
    顯示於類別:[化學工程與材料工程學系暨碩士班] 期刊論文

    文件中的檔案:

    檔案 描述 大小格式瀏覽次數
    index.html0KbText624檢視/開啟


    在CCUR中所有的資料項目都受到原著作權保護.


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