The study on a new superconductor (oxide Ba-Y-Cu) with high critical temperature T<sub>c</sub> by positron annihilation

Caigu Zhang; Zhuxing Yu; Zhu Wang; Zhe Huang; Jun Zhou

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The study on a new superconductor (oxide Ba-Y-Cu) with high critical temperature T_c by positron annihilation

更新时间：2022-09-13

- The study on a new superconductor (oxide Ba-Y-Cu) with high critical temperature T_c by positron annihilation
- Nuclear Techniques Vol. 10, Issue 12, (1987)
- 作者机构：
  
  武汉大学
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：01 July 1987，
  
  Published：1987-12
- 稿件说明：
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Caigu Zhang, Zhuxing Yu, Zhu Wang, et al. The study on a new superconductor (oxide Ba-Y-Cu) with high critical temperature T_c by positron annihilation[J]. Nuclear techniques, 1987, 10(12): 1-3,57.
DOI：

Caigu Zhang, Zhuxing Yu, Zhu Wang, et al. The study on a new superconductor (oxide Ba-Y-Cu) with high critical temperature T_c by positron annihilation[J]. Nuclear techniques, 1987, 10(12): 1-3,57. DOI：

摘要

本文介绍用正电子湮没技术研究了具有高临界温度下

的新型超导材料Ba-Y-Cu氧化物。实验发现，在起始转变温度以下，正电子寿命减少与电阻随温度的变化曲线符合。在临界温度

处。出现了正电子寿命峰。

Abstract

The study on a new superconductor oxide Ba-Y-Cu with high critical temperature Tc is described. The experimental results show that positron lifetime reducing reflects variable curve of resistance with temperature. A peak of positron lifetime is appeared at critical temperature.

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references

赵忠贤等，科学通报 , 32 , 6 , 412 ( 1987 )。

霍长庚，物理 , 16 , 4 , 193 ( 1987 )。

J. G. Bendnorz and K. A. Müller , Z. Phys. B Condensed Matter , 64 , 189 ( 1986 ).

C. W. Chu et al. , Phys. Rev. Lett. , 58 , 408 ( 1987 ).

赵忠贤等，科学通报， 32 ， 3 ， 177 ( 1987 )。

J. D. Jorgensen et al. , Phys. Rev. Lett. , 58 , 1024 ( 1987 ).

Xie Sishen et al ., A high T c superconducting phase in Ba-Y-Cu-O system , Preprint .

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The study on a new superconductor (oxide Ba-Y-Cu) with high critical temperature Tc by positron annihilation

DOI：

摘要

Abstract

关键词

Keywords

references

The study on a new superconductor (oxide Ba-Y-Cu) with high critical temperature T_c by positron annihilation