Acta Phys. -Chim. Sin. ›› 1993, Vol. 9 ›› Issue (06): 823-826.doi: 10.3866/PKU.WHXB19930619

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Laser Plasma Mass Spectrometry of YBa2Cu3O7-x Superconducting Sample

Huang Rong-Bin; Su Zhao-Hui; Zheng Lan-Sun; Wang Yong-Jun; Qin Qi-Zong   

  1. Department of Chemistry, Xiamen University, Xiamen 361005; Department of Laser Chemistry Fudan University, Shanghai 200433
  • Received:1992-04-13 Revised:1992-08-18 Published:1993-12-15
  • Contact: Zheng Lan-Sun

Abstract: Time-of-flight mass spectra of both positive and negative ions were recorded on a home-made instrument by laser ablation of YBa_2Cu_3O_(7-x) superconducting material. Among the observed cations, Ba~+ has the highest intensity, and Cu~- for anions. In addition, three seires of oxides clusters cations of very broad mass range were observed, with compositions of BaYO_2(Y_2O_3)_n, Ba_2YO_3(Y_2O_3)_n and BaCuYO_3(Y_2O_3)_n. The experimental results were disscused and attributed to the interactions among consisting elements. As comparision, the samples of the CuO, Y_2O_3 and BaO as well as their mixture have also been studied in the same experimental condition.

Key words: Metal oxides, High temperature superconducting material, Laser plasma mass spectrometry