Author/Authors :
Takano، نويسنده , , Yoshihiko and Isobe، نويسنده , , Masaaki and Ami، نويسنده , , Takaaki and Suzuki، نويسنده , , Masayuki and Tanaka، نويسنده , , Masahiro and Noro، نويسنده , , Sumiko and Yamadaya، نويسنده , , Tokio، نويسنده ,
Abstract :
A series of Y-based 2126 compounds, La1−xSr1+xYCu2O6 (x=0 to 0.5), has been prepared. Crystal structure and cation distribution are determined by Rietveld analysis of X-ray powder diffraction data. Small Y ions occupy (2a) site preferentially. All the studied samples including HIP treated ones are semiconducting and no superconducting transition is observed down to 20K. VRH model is applicable as a transport mechanism at low temperatures.
Keywords :
lanthanum , Copper , Oxygen , Yttrium
