Influence of the rare earth element substitution on oxygen adsorption-desorption properties of YBCO |
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| Authors: | Fan Yu-shan Song Hong-zhang Li Zhi-hui Yang De-lin and Hu Xing |
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| Institution: | (1) School of Physics Engineering and Key Laboratory of Materials Physics of Ministry of Education of China, Zhengzhou University, Zhengzhou, 450052, China |
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| Abstract: | The oxygen adsorption-desorption properties of RBa2Cu3O7−δ
(R = Gd, Er, Eu, Dy, Sm, Ho and Nd) and Y1−x
LaxBa2Cu3O7−δ
(x=0.1, 0.5 and 1.0) were investigated from room temperature to 950 °C by thermogravimetry (TG). The results show that all samples
will release oxygen with the increasing of temperature and the released oxygen can be absorbed back into the sample when temperature
decreases. However, dependent on the rare earth element, the amount of the released oxygen is different for these samples.
Moreover, in the temperature increasing and decreasing circle the repetition of oxygen adsorption-desorption is also different. |
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| Keywords: | YBa2Cu3O7− δ rare earth substitution oxygen adsorption-desorption thermogravimetry |
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