Onset of superconductivity of the new high Tc superconductor Eu-Sa-Cu-O was found to be 92K.The valence of Eu ion and the Debye temperature of this superconductor were determined using Mössbauer spectroscopy.The experimental results show abnormal changes of isomer shift and lattice-softening nearby the transition temperature Tc.It seems that high Debye temperature is not a necessary condition for this high Tc superconducting system.
展开▼
机译：利用扫描穿隧显微镜探讨在硒化铟上未氧化表面和氧化表面之介面接合处的电子特性 =Scanning Tunneling Microscope study of InSe Surface Electronic Properties at the Fresh/Oxided Interface Junction
机译：High-resolution structural studies of ultra-thin magnetic, transition metal overlayers and two-dimensional transition metal oxides using synchrotron radiation
