• Chinese Journal of Lasers
  • Vol. 35, Issue s2, 259 (2008)
Cheng Guosheng*, Wu Xiaoqing, and Chen La
Author Affiliations
  • [in Chinese]
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    Cheng Guosheng, Wu Xiaoqing, Chen La. Study of the Photon Radiation and Superconductor of YBa2Cu3O7-x under the Oxygen Deficient Environment[J]. Chinese Journal of Lasers, 2008, 35(s2): 259 Copy Citation Text show less

    Abstract

    Using Janis CCS-350 refrigerator (which lowest temperature is 10 K) to provide the low temperature environment, from room temperature to 200 K, then using the vacuum pump continuously to make the oxygen in the oxygen deficiency YBa2Cu3O7-x(YBCO) sample to redistribute. The experiments show that under the anoxia condition, the oxygen deficiency of the YBCO sample become worse. At the same time, the critical superconductive temperature become lower until to the normal status, and the situ photon radiation over the oxygen deficiency YBCO sample generates continuous photon conductive effect and photon induced superconductive effect, which can partly counteract the oxygen defect which induces destroy to the superconductivity. For YBCO when x is smaller then 0.1, the samples whose convert temperature Tc higher than 90 K have unobvious oxygen deficiency and photon radiation effect under the anoxia condition. It is discussed the reactions between different elements induced by photon effect in the YBCO superconductivities, under the situation that the energy gap is less than normal semiconductivities for at lest two orders, and the situation of higher photo absorption coefficients. It is helpful to the application of YBCO superconductivity and useful for understanding the mechanism of the high temperature superconductor.
    Cheng Guosheng, Wu Xiaoqing, Chen La. Study of the Photon Radiation and Superconductor of YBa2Cu3O7-x under the Oxygen Deficient Environment[J]. Chinese Journal of Lasers, 2008, 35(s2): 259
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