Author/Authors :
J.Wosnitza، نويسنده , , Neisel، Udo نويسنده , , Schnockel، Hansgeorg نويسنده , , J. Hagel، نويسنده , , M. T. Kelemen، نويسنده , , G. Fischer، نويسنده , , B. Pilawa، نويسنده , , E. Dormann، نويسنده , , H. v. Lohneysen، نويسنده , , A. Schnepf، نويسنده , , J. Beck، نويسنده ,
Abstract :
We report on magnetization and resistivity measurements of a cluster compound in which negatively charged Ga84 entities are strongly bonded to organic ligands and confined in an ionic crystal structure. The macroscopic single crystals have a resistivity in the range of 100 (omega)cm at room temperature with a semiconducting-like temperature dependence. They reveal a superconducting transition at T c~~7.2 K and an upper critical field of B c2=13.8 T. The presence of the superconducting state in the regularly arranged Ga84 clusters implies an electronic coupling between the individual clusters.
Keywords :
Colostrum , camel milk , parasites , Schistosoma mansoni , schistosomiasis , lactoferrin , ALT , AST. , GST
