Abstrak 
The Effects of Fe Impurities to the Magnetic Properties in Electron-doped Superconducting Cuprates
Risdiana, D. Suhendar, S. Pratiwi, T. Saragi, W. A. Somantri, S. Harimurty, F. K. Muharom, S. F. Winda, R. R. Sihombing. M. R. Ramadhan, R. Tasomara
Universitas Padjadjaran, 2nd International Conference on Functional Materials Science 2014 , Lombok, 12-13 November 2014
Bahasa Inggris
Universitas Padjadjaran, 2nd International Conference on Functional Materials Science 2014 , Lombok, 12-13 November 2014
Eu2-x+yCex-yCu1-yFeyO4+α-δ, Fe
Effects of partially substitution of magnetic impurity Fe for Cu to the magnetic properties in electron-doped superconducting cuprates of Eu2-x+yCex-yCu1-yFeyO4+α-δ. with y = 0, 0.005, 0.010, 0.020, and 0.030 have been investigated in order to clarify electron-hole doping symmetry in high Tc superconductors. impurity-free samples of y = 0, Tc onset is observed at about 15 K. For y = 0.005, Tc onset decreases to be around 10 K. The trace of superconductivity disappeared at y 0.020. The volume fraction of the superconducting state, VSC, decreases markedly from 100 % to 30 % with only 0.5 % impurity substitution. VSC is completely zero when the concentration of Fe is larger than 2 %. It is found that partially substitution of magnetic impurity Fe for Cu effectively decreased superconducting properties of electron-doped superconductor Eu2-x+yCex-yCu1-yFeyO4+α-δ