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Effect of Gd Substitution for the Ca Site in the Bi1.84Pb0.34Sr1.91 ({Ca1-xGdx)2.03Cu3.06O10+δ(x=0.0~0.06) Superconductors

  • Lee, Min-Soo (Institute of Environmental Preservation & Disaster Prevention, Hanbat National University)
  • Published : 2003.05.01

Abstract

The effect of substitution of Gd ions for Ca ions in the B $i_{1.84}$P $b_{0.34}$S $r_{1.91}$(C $a_{1-x}$ G $d_{x}$)$_{2.03}$ C $u_{3.06}$ $O_{ 10+{\delta}}$/ (x=0.0~0.06) was investigated by measuring x-ray diffraction patterns, lattice constants, do resistivity and Hall effect. We found the solubility limit of Gd in the 110 K phase to be x < 0.015. Within the solubility limit, the c-axis seemed to decrease with increasing x. In the region of the 110 K single phase, the critical temperature $T_{c}$ gradually decreased with an increasing the Gd concentration x, corresponding to a small change of the carrier concentration.

Keywords

References

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