English  |  正體中文  |  简体中文  |  Items with full text/Total items : 66984/66984 (100%)
Visitors : 22945324      Online Users : 400
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
  • Adv. Search
    HomeLoginUploadHelpAboutAdminister Goto mobile version


    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/52944


    Title: Observations of Large Magnetic Moments in Icosahedral Pb Nanoparticles
    Authors: Karna,SK;Li,CY;Wu,CM;Hsu,CK;Wang,CW;Li,WH
    Contributors: 物理學系
    Keywords: ELECTRON-DIFFRACTION;PERMANENT MAGNETISM;CLUSTERS;PARTICLES;TRANSITION;METALS;AU
    Date: 2011
    Issue Date: 2012-06-11 10:51:06 (UTC+8)
    Publisher: 國立中央大學
    Abstract: We report on the observation of a large magnetic moment in 7 nm icosahedral Pb particles. This moment is 140 times stronger than that developed in 6 nm fcc Pb particles. The saturation magnetization of 7 nm icosahedral Pb particles exhibits a peak at 40 K, which is reduced by only 9% when the temperature is increased from 40 to 300 K. No sign of the occurrence of superconductivity is observed in 7 nm icosahedral Pb particles upon cooling to 1.8 K, whereas superconductivity develops below 6.6 K in 6 nm fcc Pb particles. It is the icosahedral atomic arrangement that generates the large magnetic moment and suppresses the development of superconductivity in these nanoparticles.
    Relation: JOURNAL OF PHYSICAL CHEMISTRY C
    Appears in Collections:[物理學系] 期刊論文

    Files in This Item:

    File Description SizeFormat
    index.html0KbHTML254View/Open


    All items in NCUIR are protected by copyright, with all rights reserved.

    社群 sharing

    ::: Copyright National Central University. | 國立中央大學圖書館版權所有 | 收藏本站 | 設為首頁 | 最佳瀏覽畫面: 1024*768 | 建站日期:8-24-2009 :::
    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback  - 隱私權政策聲明