酸化物超伝導体の合成と特性 Ca1-xSrxFeO3-z及びSrFe1-xCoxO3-z電気化学的手法による酸化とその性質

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タイトル別名
  • Electrochemical Oxidation of Ca1-xSrxFeO3-z and SrFe1-xCoxO3-z Systems.
  • Ca1-xSrxFeO3-z オヨビ SrFe1-xCoxO3-z ノ デンキ

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Ca1-xSrxFeO3-z and SrFe1-xCoxO3-z (0≤x≤1, z-0.1) of the cubic perovskite type were prepared by treating grossly oxygen-deficient samples at room temperature using an electrochemical oxidation technique. In the case of SrFe1-xCoxO3-z, the ferromagnetic curie temperature has been found to be raised above 3 00K for 0.4≤x≤1.0 (340K at x=0.4) by the electrochemical oxidation method. Only a few hundred mV of electrode potential has relatively more oxidation power than a considerable high oxygen pressure, however, the lack of stability (drcrease of oxygen content) after electrolysis is a weak-point.

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