Departmental Papers (MEAM)

Document Type

Journal Article

Date of this Version

August 1991

Comments

Copyright (1991) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. Reprinted in Journal of Applied Physics, Volume 70, Issue 4, August 1991, pages 1915-1918.
Publisher URL: http://dx.doi.org/10.1063/1.349473

NOTE: At the time of publication, author Robert W. Carpick was affiliated with the University of Wisconsin. Currently (June 2007), he is a faculty member in the Department of Mechanical Engineering and Applied Mechanics at the University of Pennsylvania.

Abstract

Raman spectroscopy, in which a laser beam serves the dual role of exciting the Raman spectrum and annealing the sample, shows promise as a means of investigating oxygen effects in the oxide superconductors. A technique is described, based on measurements of the ratios of the areas of corresponding peaks in the anti-Stokes and Stokes spectra, whereby the temperature of the illuminated region of the sample can be determined as a function of the power in the incident laser beam. It is found that, for sintered samples of bismuth 2122, a small correction must be made for the departure from thermodynamic equilibrium induced by the pumping effect of the laser beam.

Keywords

bismuth oxides, calcium oxides, strontium oxides, copper oxides, high-tc superconductors, sintering, laser radiation, annealing, excitation, raman spectra, temperature measurement

Share

COinS
 

Date Posted: 25 June 2007

This document has been peer reviewed.