It is well known that Cu-oxygen plays a very important role in high T<sub>c</sub> superconductors YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7<sub>δ</sub></sub>. NQ...It is well known that Cu-oxygen plays a very important role in high T<sub>c</sub> superconductors YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7<sub>δ</sub></sub>. NQR can provide microscopic information about the electronic configuration around each Cu site, so it is a powerful method for revealing the structure of high T<sub>c</sub> superconductors.展开更多
Ⅰ. INTRODUCTIONWith the T_c higher than that of Y-system superconductors, Bi-system superconductors are important materials to make the high-T_c superconducting wire. So reseachers in this field are interested in Bi ...Ⅰ. INTRODUCTIONWith the T_c higher than that of Y-system superconductors, Bi-system superconductors are important materials to make the high-T_c superconducting wire. So reseachers in this field are interested in Bi systems. Considerable amount of NQR and NMR studies about nuclei Cu, Y, and O in YBaCuO have been reported. A lot of structure and relaxation in-展开更多
基金Project supported by the National Superconductivity Research and Developing Center.
文摘It is well known that Cu-oxygen plays a very important role in high T<sub>c</sub> superconductors YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7<sub>δ</sub></sub>. NQR can provide microscopic information about the electronic configuration around each Cu site, so it is a powerful method for revealing the structure of high T<sub>c</sub> superconductors.
基金Project supported by the Chinese National Center for United Research and Development on Superconductivity
文摘Ⅰ. INTRODUCTIONWith the T_c higher than that of Y-system superconductors, Bi-system superconductors are important materials to make the high-T_c superconducting wire. So reseachers in this field are interested in Bi systems. Considerable amount of NQR and NMR studies about nuclei Cu, Y, and O in YBaCuO have been reported. A lot of structure and relaxation in-
