In this letter,we point out that the Batlogg et al.experiment does not indicate that in the oxide superconductors Ba_(2)YCu_(3)O_(7) and Ba_(2)EuCu_(3)O_(7),the isotope effect,if existed.would be very small,but instea...In this letter,we point out that the Batlogg et al.experiment does not indicate that in the oxide superconductors Ba_(2)YCu_(3)O_(7) and Ba_(2)EuCu_(3)O_(7),the isotope effect,if existed.would be very small,but instead,shows that the coupling between electron and the high frequency lattice vibration involving oxygen is weak.展开更多
文摘In this letter,we point out that the Batlogg et al.experiment does not indicate that in the oxide superconductors Ba_(2)YCu_(3)O_(7) and Ba_(2)EuCu_(3)O_(7),the isotope effect,if existed.would be very small,but instead,shows that the coupling between electron and the high frequency lattice vibration involving oxygen is weak.