Positron annihilation study on the superconductivity of Gd-doped YBCO system

CHEN Zhenping1 LI Xigui2 SU Yuling1 XUE Yuncai1 LIU Haizeng1 GONG Shicheng1 ZHAO Jingxun1 1

doi:null

您当前的位置：

首页 >

文章列表页 >

Positron annihilation study on the superconductivity of Gd-doped YBCO system

更新时间：2021-03-12

- Positron annihilation study on the superconductivity of Gd-doped YBCO system
- NUCLEAR TECHNIQUES Issue 1, (2006)
- 作者机构：
  
  1. 郑州轻工业学院技术物理系
  2. 河南师范大学物理系
  3. 郑州轻工业学院技术物理系,郑州,450002
  4. ,新乡,453002
- 作者简介：
- 基金信息：
  
  河南省自然科学基金(No.0411023100);河南省教育厅自然科学基础研究计划(No.2004922024);河南省高校青年骨干教师计划项目(No.104)资助课题
- DOI：
  CLC： O572.11
- Published：01 January 2006
- 稿件说明：
移动端阅览
[1]陈镇平,李喜贵,苏玉玲,薛运才,刘海增,宫世成,赵景训.Gd~(3+)掺杂YBCO体系超导电性的正电子研究[J].核技术,2006(01):33-36.

CHEN Zhenping1 LI Xigui2 SU Yuling1 XUE Yuncai1 LIU Haizeng1 GONG Shicheng1 ZHAO Jingxun1 1. Positron annihilation study on the superconductivity of Gd-doped YBCO system[J]. Nuclear techniques, 2006, (1): 33-36.
[1]陈镇平,李喜贵,苏玉玲,薛运才,刘海增,宫世成,赵景训.Gd~(3+)掺杂YBCO体系超导电性的正电子研究[J].核技术,2006(01):33-36. DOI：

CHEN Zhenping1 LI Xigui2 SU Yuling1 XUE Yuncai1 LIU Haizeng1 GONG Shicheng1 ZHAO Jingxun1 1. Positron annihilation study on the superconductivity of Gd-doped YBCO system[J]. Nuclear techniques, 2006, (1): 33-36. DOI：

摘要

为探究稀土离子Gd3+的Y位掺杂对YBa2Cu3O7-δ（YBCO）体系晶体结构和局域电子结构的影响

利用正电子湮没和X-射线衍射（XRD）实验对Y1-xGdxBa2Cu3O7-δ（x=0—1.0）系列样品进行了系统研究。XRD实验表明

Gd离子的Y位替代使得样品晶胞参数增大

但所有样品均保持与YBCO相同的单相正交结构。输运测量表明

各实验样品超导转变温度Tc均在90K以上

且整体上随Gd3+离子含量的增加而增加。正电子实验结果给出局域电子密度ne随Gd掺杂浓度x的增加而减小。

Abstract

To make clear the influence of magnetic rare-earth ion Gd3+ doping in the Y site on crystal structure and localized electron structure of YBCO system

the Gd-doped Y1-xGdxBa2Cu3O7-δ (x=0—1.0) systems were studied systematically by the positron annihilation technique and X-ray diffraction (XRD). The XRD analysis reveals that Gd3+ with bigger radius doping in Y site makes the crystal parameters and crystal volume increase

while all the samples remain the single orthorhombic phase as YBa2Cu3O7-δ (YBCO) system does. The temperature dependence of resistance measurement shows that Tc is above 90 K for all samples

and Tc increases with increasing Gd3+ content. The positron experiment indicates that the localized electronic density ne decreases with increasing Gd3+ content.

关键词

Keywords

references

Views

165

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Positron annihilation study on Fe-doped GdBa₂Cu_3-xFe_xO_7-δ superconductor systems

Application of positron annihilation to study the effect of calcium oxide addition on the sintering process of alumina nanoceramics

Positron annihilation study on defect repair of pure iron and RPV steel under electropulsing treatment

Study on the microstructure and defects of Al₂O₃/ZrO₂ nano-composites by positron lifetime spectroscopy

Microstructures of the phase transition of nano-magnesium hydroxide to nano-magnesium oxide by positron annihilation lifetime spectroscopy

Related Author

CHEN Zhenping1 ZHANG Guofang2 XUE Renzhong1 SHI Kai1 LI Tao1 WANG Chunmei1 XUE Yuncai1 1

张国芳

薛人中

石开

李涛

王春梅

薛运才

YANG Xuanye

Related Institution

Department of Technology and Physics,Zhengzhou University of Light Industry,Zhengzhou 450002,China) 2

南阳师范学院物理与电子工程学院

School of Physics and Technology, Hubei Key Laboratory of Nuclear Solid State Physics, Wuhan University

Suzhou Nuclear Power Research Institute

School of Physics and Technology, Hubei Key Laboratory of Nuclear Solid State Physics, Wuhan University

AI问答

Address：2019 Jialuo Road, Jiading, Shanghai, China Postal code：201800
Tel：021-39194977 Email：LHB@sinap.ac.cn
Technical support is provided by Beijing Founder electronics co., LTD 沪ICP备05005479号-1 京公网安备11010802024621
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.
Total Visits：881139 Visits Today：666

⁰