Neutron Scattering Study of Sr Substitution for Ba in YBa2 Cu3 O7-y
DING Yongfan, LI Jizhou, YANG Jilian, ZHANG Baisheng, KANG Jian, YE Chuntang, FU Qiang* , JIN Sheng* , CUI Yujian* , HE Aisheng* , HE Yusheng*
China Institute of Atomic Energy, Beijing 102413
* Department of Physics, Tsinghua University, Beijing 100084
Neutron Scattering Study of Sr Substitution for Ba in YBa2 Cu3 O7-y
DING Yongfan;LI Jizhou;YANG Jilian;ZHANG Baisheng;KANG Jian;YE Chuntang;FU Qiang* ;JIN Sheng* ;CUI Yujian* ;HE Aisheng* ;HE Yusheng*
China Institute of Atomic Energy, Beijing 102413
* Department of Physics, Tsinghua University, Beijing 100084
关键词 ：
61.12.Gz ,
74.70.Vy
Abstract ： Neutron diffraction and inelastic scattering were carried out on YBa2-x Srx Cu3 O7-y (x=0.5, 1.0, 1.25). It was confirmed that the substitution of Sr for Ba in YBa2 Cu3 O7-y increases the oxygen vacancies in the Cu O chain. Moreover, the substitution strengthens the coupling between the Ba O plane the Cu O chain, and reduces the crystal stability. These are possible causes of Tc depression for Sr substituted YBa2 Cu3 O7-y .
Key words ：
61.12.Gz
74.70.Vy
出版日期: 1993-08-01
引用本文:
DING Yongfan;LI Jizhou;YANG Jilian;ZHANG Baisheng;KANG Jian;YE Chuntang;FU Qiang*;JIN Sheng*;CUI Yujian*;HE Aisheng*;HE Yusheng*. Neutron Scattering Study of Sr Substitution for Ba in YBa2 Cu3 O7-y [J]. 中国物理快报, 1993, 10(8): 486-488.
2 Cu3 O7-y . Chin. Phys. Lett., 1993, 10(8): 486-488.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y1993/V10/I8/486
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