Synthesis and Structural Study of Sr2CuO3+δ Superconductor under High Pressure

LIU Qing-Qing; WANG Fu-Ren; LI Feng-Ying; CHEN Liang-Chen; YU Ri-Cheng; JIN Chang-Qing; LI Yan-Chun; LIU Jing

首页> 中文期刊> 《中国物理快报：英文版》 >Synthesis and Structural Study of Sr2CuO3+δ Superconductor under High Pressure

Synthesis and Structural Study of Sr2CuO3+δ Superconductor under High Pressure

开具论文收录证明 >>

期刊封面封底目录下载 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

A single-phase Sr2CuO3+δ superconductor is synthesized under high temperature and high pressure, in which oxygen atoms only partially occupy the apical sites next to the CuO2 planes and act as hole-dopants. The superconducting transition temperature with Tcmax = 75 K is achieved in the material. Structure analysis from x-ray powder diffraction data show that this material crystallizes into a K2NiF4 structure with tetragonal unit cell of α = 3.795(3) (A) and c = 12.507(1) (A). Energy-dispersive synchrotron x-ray-diffraction studies at ambient are performed on powder samples of St2CuO3+δ in a diamond-anvil cell at pressure up to 35 GPa. Anisotropic compressibility is found. Pressure-induced isostructural phase transition might exist as revealed by the discontinuous change of crystal cell volume V with pressure.

著录项

来源
《中国物理快报：英文版》 |2008年第6期|2239-2241|共3页
作者
LIU Qing-Qing; WANG Fu-Ren; LI Feng-Ying; CHEN Liang-Chen; YU Ri-Cheng; JIN Chang-Qing; LI Yan-Chun; LIU Jing;
展开▼
作者单位

Department of Physics, Peking University, Beijing 100871;

Institute of Physics, Chinese Academy of Sciences, Beijing 100190;

Department of Physics, Peking University, Beijing 100871;

Institute of Physics, Chinese Academy of Sciences, Beijing 100190;

Institute of Physics, Chinese Academy of Sciences, Beijing 100190;

Institute of Physics, Chinese Academy of Sciences, Beijing 100190;

Institute of Physics, Chinese Academy of Sciences, Beijing 100190;

Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049;

Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049;

展开▼
原文格式 PDF
正文语种 chi
中图分类物理学;
关键词

Synthesis and Structural Study of Sr2CuO3+δ Superconductor under High Pressure

摘要

著录项

相关主题

期刊订阅