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Effect of Oxygen Annealing on the Magnon-Pair Raman Scattering in La2CuO4-y

Published online by Cambridge University Press:  28 February 2011

I. Ohana ,
Y. C. Liu ,
M. S. Dresselhaus ,
G. Dresselhaus ,
A. J. Strauss ,
H. J. Zeiger ,
P. J. Picone ,
H. P. Jenssen  and
D. R. Gabbe
I. Ohana
Affiliation:
Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139
Y. C. Liu
Affiliation:
Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
M. S. Dresselhaus
Affiliation:
Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139
G. Dresselhaus
Affiliation:
Francis Bitter National Magnet Laboratory, Massachusetts Institute of Technology, Cambridge, MA 02139
A. J. Strauss
Affiliation:
Lincoln Laboratory, Massachusetts Institute of Technology, Lexington, MA 02173
H. J. Zeiger
Affiliation:
Lincoln Laboratory, Massachusetts Institute of Technology, Lexington, MA 02173
P. J. Picone
Affiliation:
Center for Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
H. P. Jenssen
Affiliation:
Center for Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
D. R. Gabbe
Affiliation:
Center for Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
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Abstract

Polarized Raman scattering spectra at 300K and 20K are reported for a single crystal of La2CuO4-y before and after annealing in oxygen at 1000°C for 24 hours. Oxygenation strongly quenches the temperature sensitive line at ∼1430 cm-1 (for T ∼ 300K) in the “as grown” crystal, previously identified with magnon-pair excitation associated with two-dimensional antiferromagnetic ordering. In addition, the phonon spectrum is greatly modified by the addition of oxygen, indicating a more uniform local crystalline environment after oxygenation. Raman scattering is thus a sensitive probe of the effect of oxygenation on the near surface magnetic and phonon properties of La2CuO4-y.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 99: Symposium AA – High-Temperature Superconductors , 1987 , 439
Copyright
Copyright © Materials Research Society 1988

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References

1. Ohana, I., Liu, Y. C., Picone, P. J., Lusnikov, A., Dresselhaus, M. S., Dresselhaus, G., Jenssen, H. P., Gabbe, D. R., Zeiger, H. J., and Strauss, A. J., (to be published) (1987).Google Scholar
2. Shirane, G., Endoh, Y., Birgeneau, R. J., Kastner, M. A., Hidaka, Y., Oda, M., Suzuki, M., and Murakami, T., Phys. Rev. Lett. 59, 1613 (1987).Google Scholar
3. Vaknin, D., Sinha, S. K., Moncton, D. E., Johnston, D. C, Newsam, J. M., Safinya, C. R., and King, H. E., Phy. Rev. Lett. 58, 2802 (1987).Google Scholar
4. Picone, P. J., Jenssen, H. P., and Gabbe, D. R., J. Crystal Growth (in press) (1987).Google Scholar
5. Grant, P. M., Parkin, S. S. P., Lee, V. Y., Engler, E. M., Ramirez, M. L., Vazquez, J. E., Lim, G., Jacowitz, R. D., and Greene, R. L., Phys. Rev. Lett. 58, 2482 (1987).Google Scholar
6. Emery, V. J., Phys. Rev. Lett. 58, 2794 (1987).Google Scholar