Neutron diffraction aund inelastic scatterilug were curried out on YBa_(2)Cu_(3)O_(7-y)(r=0.5,1.0、1.25).It was coufirmed that the substitutiou of Sr for Ba in YBa_(2)Cu_(3)O_(7-y) inrcases the oxyge1n vacancies int t...Neutron diffraction aund inelastic scatterilug were curried out on YBa_(2)Cu_(3)O_(7-y)(r=0.5,1.0、1.25).It was coufirmed that the substitutiou of Sr for Ba in YBa_(2)Cu_(3)O_(7-y) inrcases the oxyge1n vacancies int the CuO chain.Moreuver.the sntbstittiou strengtlenx the coupling betw1ell the Ba O plane aldl the Cu O rhain,Moreoer. the crystiul stnlbility.Tlusse the ppossill.rnuscs of Te depression for Sr xilrtittril YBa_(2)Cu_(3)O_(7-y).展开更多
基金Supported by the National Natural Science Foundation of China。
文摘Neutron diffraction aund inelastic scatterilug were curried out on YBa_(2)Cu_(3)O_(7-y)(r=0.5,1.0、1.25).It was coufirmed that the substitutiou of Sr for Ba in YBa_(2)Cu_(3)O_(7-y) inrcases the oxyge1n vacancies int the CuO chain.Moreuver.the sntbstittiou strengtlenx the coupling betw1ell the Ba O plane aldl the Cu O rhain,Moreoer. the crystiul stnlbility.Tlusse the ppossill.rnuscs of Te depression for Sr xilrtittril YBa_(2)Cu_(3)O_(7-y).
