Chem. J. Chinese Universities ›› 1999, Vol. 20 ›› Issue (2): 286.

• Articles • Previous Articles     Next Articles

A Quadrupole Mass Spectrometric Study on Pulsed Laser Ablation of Y1Ba2Cu3O7-δ

TANG Yong-Xin, DANG Hai-Jun, ZHANG Zhuang-Jian, QIN Qi-Zong   

  1. Laser Chemistry Institute, Fudan University, Shanghai, 200433
  • Received:1998-06-09 Online:1999-02-24 Published:1999-02-24

Abstract: Pulsed laser ablation of Y1Ba2Cu3O7-δat 355 nm has been investigated with a quadrupole mass spectrometric technique. The profiles of the TOF spectra of Y, Ba and Cu atoms and ions are nearly the same. The translational energies of ionic ablated species estimated from their TOF spectra are independent on the laser fluences. The angular distributions can be well fitted by the expression of ccosnθ for ionic ablated Y+, Ba+and Cu+. The production of BaO, YO and CuO might have different mechanisms.

Key words: Pulsed laser ablation, Space angle distribution, Y1Ba2Cu3O7-δ

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