A more accurate method to measure the oxygen content in YBa2Cu3Oy superconductors

被引：0
作者：
Wei Y. [1 ]
Kambe S. [1 ]
机构：
[1] Yamagata University, Graduate School of Science and Engineering, Material Chemical Engineering, 4–3–16 Johnan, Yonezawa, Yamagata
来源：
Journal of the Ceramic Society of Japan | 2023年 / 131卷 / 10期
关键词：
Chlorine sensor; Cu valence; DO sensor; Oxygen content; Superconductor; YBa[!sub]2[!/sub]Cu[!sub]3[!/sub]O[!sub]y[!/sub;
D O I：
10.2109/jcersj2.23108
中图分类号：
学科分类号：
摘要：
The copper (Cu) valence greatly influences the transition temperature (Tc) in cuprate superconductors. According to the charge neutralization rule, the Cu valence is calculated from the oxygen content. Previously, we developed the dissolved oxygen (DO) method as a novel oxygen measurement method for La21xSrxCuO4 and YBa2Cu3Oy (YBCO) using a new DO sensor. The measurement time of the DO method is about one-third that of the standard iodometric method, but the difference in the measured Cu valence for YBCO is 0.039. Herein we report that a more accurate method, which combines the dissolved chlorine method and the corrected DO method, improves this difference to 0.013. ©2023 The Ceramic Society of Japan. All rights reserved.
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页码：789 / 796
页数：7
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  • [1] Takagi H., Ido T., Ishibashi S., Uota M., Uchida S., Phys. Rev. B, 40, (1989)
  • [2] Cava R. J., Hewat A. W., Batlogg B., Marezio M., Rabe K. M., Krajewski J. J., Peck W. F., Rupp L. W., Physica C, 165, (1990)
  • [3] Kambe S., Murakosi Y., Sekine R., Kawai M., Yamada K., Ohshima S., Okuyama K., Physica C, 178, (1991)
  • [4] Karppinen M., Fukuoka A., Niinisto L., Yamauchi H., Supercond. Sci. Tech, 9, (1996)
  • [5] Karppinen M., Matvejeff M., Salomaki K., Yamauchi H., J. Mater. Chem, 12, (2002)
  • [6] Chen M., Wang X., Yu Y. H., Pei Z. L., Bai X. D., Sun C., Wen L. S., Appl. Surf. Sci, 158, (2000)
  • [7] Kambe S., Abe J., Ohshima S., Ishii O., Advances in Superconductivity XI, (1999)
  • [8] Fukuoka A., Tokiwa-Yamamoto A., Itoh M., Usami R., Adachi S., Yamauchi H., Tanabe K., Physica C, 265, (1996)
  • [9] Yasukawa Y., Yamauchi H., Karppinen M., Appl. Phys. Lett, 81, (2002)
  • [10] Zhan D., Kambe S., Tashiro A., Ohba Y., Mizuguchi H., Ito K., Kakizaki S., Okita Y., J. Ceram. Soc. Jpn, 122, (2014)
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