Determination of oxygen content in high Tc superconductors by a charged particle activation method

Tao, Z.; Alburger, D. E.; Jones, K. W.; Yao, Y. D.; Kao, Y. H.
October 1988
Applied Physics Letters;10/10/1988, Vol. 53 Issue 15, p1440
Academic Journal
A new method for determining the oxygen content in high Tc superconductors has been demonstrated using a charged particle activation technique. This method allows a measurement of the concentration of 16O atoms in the superconducting material by detection of the 17F produced with the 16O(d,n)17F nuclear reaction. By way of example, this technique is applied to the determination of oxygen content in a series of high Tc Y-Ba-Cu-O samples in which the stoichiometry is varied by reducing the copper concentration. The stabilized oxygen content shows a nonlinear dependence on the copper deficiency in these specimens.


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