Strong Localization Effect of Oxygen Deficiency on Carriers in T1 Based Superconductors

MA Qingzhu, WANG Yunbo, LI Yang, CAO Guohui

分享

计量
  • 文章访问数:  253
  • HTML全文浏览量:  86
  • PDF下载量:  11
  • 被引次数: 0

目录

HTML全文
    资源附件(0)
    相关文章
    施引文献

    Cite this article as:

    MA Qingzhu, WANG Yunbo, LI Yang, and CAO Guohui, Strong Localization Effect of Oxygen Deficiency on Carriers in T1 Based Superconductors, J. Univ. Sci. Technol. Beijing , 4(1997), No. 1, pp.54-57.
    MA Qingzhu, WANG Yunbo, LI Yang, and CAO Guohui, Strong Localization Effect of Oxygen Deficiency on Carriers in T1 Based Superconductors, J. Univ. Sci. Technol. Beijing , 4(1997), No. 1, pp.54-57.
    shu
    引用本文 PDF XML SpringerLink

    Strong Localization Effect of Oxygen Deficiency on Carriers in T1 Based Superconductors

    • Department of Physics, USTB, Beijing 100083, China

    • Department of Materials Physics, USTB

    • Laboratory of Nuclear Analysis Techniques Academia Sinica

    • National Laboratory of Superconduchvity, Academia Sinica

      通信作者:

    中文摘要

    Investigation on the effect of Fe-doped T1-1223 superconductors has been carried out by the simultaneous measurements of the spectra of positron annihilation lifetime and Doppler broadening of position annihilation,together with the measurement of Hall coefficient. The results of samples with different doping level show that the occupation of Fe atoms on Cu sites results in a linear decrement of superconducting transition temperature. The electron concentration in Cu-O layer has been enhanced by Fe doping. The difference in valence between Fe3+ and Cu2+ induces extra oxygen into the lattice and forms the extra oxygen defects. This Fe dopant leads to a strong localization of the electrons in the Cu-O layer. So the decrement of the concentration of the itinerant electrons results in a decline of the superconducting transition temperature.

     

    Strong Localization Effect of Oxygen Deficiency on Carriers in T1 Based Superconductors

    Author Affilications

      • Department of Physics, USTB, Beijing 100083, China

      • Department of Materials Physics, USTB

      • Laboratory of Nuclear Analysis Techniques Academia Sinica

      • National Laboratory of Superconduchvity, Academia Sinica

    • Received: 23 February 1996;
    Investigation on the effect of Fe-doped T1-1223 superconductors has been carried out by the simultaneous measurements of the spectra of positron annihilation lifetime and Doppler broadening of position annihilation,together with the measurement of Hall coefficient. The results of samples with different doping level show that the occupation of Fe atoms on Cu sites results in a linear decrement of superconducting transition temperature. The electron concentration in Cu-O layer has been enhanced by Fe doping. The difference in valence between Fe3+ and Cu2+ induces extra oxygen into the lattice and forms the extra oxygen defects. This Fe dopant leads to a strong localization of the electrons in the Cu-O layer. So the decrement of the concentration of the itinerant electrons results in a decline of the superconducting transition temperature.

     

      HTML全文
      • 资源附件(0)
      • 相关文章
      施引文献

    Relative Articles

    Int. J. Miner. Metall. Mater., 2013, 20(1): 37-41.

    PDF View details

    Ke Xu, Yong-hao Ai, Xiu-yong Wu. Application of multi-scale feature extraction to surface defect classification of hot-rolled steels [J]. 矿物冶金与材料学报（英文版）. DOI: 10.1007/s12613-013-0690-y

    View details

    Int. J. Miner. Metall. Mater., 2012, 19(12): 1069-1076.

    PDF View details

    Yong-jun Xian, Shu-ming Wen, Xiu-ming Chen, Jiu-shuai Deng, Jian Liu. Effect of lattice defects on the electronic structures and floatability of pyrites [J]. 矿物冶金与材料学报（英文版）. DOI: 10.1007/s12613-012-0672-5

    View details

    Int. J. Miner. Metall. Mater., 2012, 19(9): 827-835.

    PDF View details

    Heng-san Liu, Lin Zhang, Xin-bo He, Xuan-hui Qu, Hong-min Zhu, Guo-qing Zhang. Effect of oxygen content and heat treatment on carbide precipitation behavior in PM Ni-base superalloys [J]. 矿物冶金与材料学报（英文版）. DOI: 10.1007/s12613-012-0635-x

    View details

    Int. J. Miner. Metall. Mater., 2011, 18(1): 66-69.

    PDF View details

    Shuai Wang, Koichi Tsuchiya, Lei Wang, Minoru Umemoto. Martensitic stabilization and defects induced by deformation in TiNi shape memory alloys [J]. 矿物冶金与材料学报（英文版）. DOI: 10.1007/s12613-011-0401-5

    View details

    Int. J. Miner. Metall. Mater., 2008, 15(1): 53-57.

    PDF View details

    Haijun Tang, Xuexu Gao, Wei Wu, Maocai Zhang, Shouzeng Zhou. Effect of microstructure and defects on the magnetostriction of 〈110〉 oriented TDT-110 alloys [J]. 矿物冶金与材料学报（英文版）. DOI: 10.1016/S1005-8850(08)60011-0

    View details

    Int. J. Miner. Metall. Mater., 2007, 14(5): 437-442.

    PDF View details

    Guifang Wu, Ke Xu, Jinwu Xu. Application of a new feature extraction and optimization method to surface defect recognition of cold rolled strips [J]. 矿物冶金与材料学报（英文版）. DOI: 10.1016/S1005-8850(07)60086-3

    View details

    Int. J. Miner. Metall. Mater., 2000, 7(2): 118-121.

    PDF View details

    Wei Tian, Raymond T. Woodhams. Oxygen Permeability of Polypropylene Containing Polyisobutene with Magnesium Acetate [J]. 矿物冶金与材料学报（英文版）.

    View details

    Int. J. Miner. Metall. Mater., 2000, 7(1): 24-29.

    PDF View details

    ZhiqiangHan, Junyi Su, Kaike Cai. A Mathematical Model for Predicting Shrinkage Defect of Ductile Iron Castings [J]. 矿物冶金与材料学报（英文版）.

    View details

    Int. J. Miner. Metall. Mater., 1999, 6(3): 219-223.

    PDF View details

    Wei Tian, Raymond T. Whodhams. Effect of Cooling Rate on Morphology and Oxygen Permeability of Polypropylene [J]. 矿物冶金与材料学报（英文版）.

    View details

    Int. J. Miner. Metall. Mater., 1998, 5(1): 47-50.

    PDF View details

    Yonglin Kang, Xianjin Wang. Dislocation Densites of Deformed Steel Sheets Based on Positron Annihilation [J]. 矿物冶金与材料学报（英文版）.

    View details

    /

    返回文章
    返回

    版权所有 © 《矿物冶金与材料学报（英文）》编辑部

    地址: 北京市海淀区学院路30号邮政编码: 100083

    电子邮箱：journal@ustb.edu.cn电话：+86-10-62332875

    本系统由北京仁和汇智信息技术有限公司开发      百度统计