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Small-Angle Neutron Scattering from YBa2Cu3O7 and Bi2Sr2CaCu2O8 Near the Critical Temperature

Published online by Cambridge University Press:  22 February 2011

C. D. Frost  and
G.L. Squires
C. D. Frost
Affiliation:
Cavendish Laboratory, Madingley Road, Cambridge CB3 OHE, U.K.
G.L. Squires
Affiliation:
Cavendish Laboratory, Madingley Road, Cambridge CB3 OHE, U.K.
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Abstract

One of the 30 meter small-angle neutron scattering spectrometers at NIST has been used to measure the scattering from YBa2Cu3O7 and Bi2Sr2CaCu2O8 at a range of temperatures from 35 K to 135 K with wavevector transfers Q from 0.01 Å-1 to 0.08 Å-1. Considerable attention was paid to sample preparation in order to reduce the background scattering from crystalline defects and stoichiometric variations in the sample. For both materials, the difference in the differential scattering cross-sections at the critical temperature Tc and at temperatures of Tc ± 20 K showed considerable structure in Q, corresponding to spatial variations in the neutron scattering potential with Fourier components of wavelength of the order of 100 Å.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 376: Symposium BB – Neutron Scattering in Materials Science , 1994 , 519
Copyright
Copyright © Materials Research Society 1995

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References

REFERENCES

1 Bemhoeft, N.R., Allen, P.J., Paul, D.McK., Hayden, S.M., Timmins, P.A., and Lonzarich, G.G., Nature 350, 690 (1991).Google Scholar
2 Squires, G.L., Proc. Phys. Soc. A67, 248 (1954).Google Scholar
3 Wilkinson, M.K. and Shull, C.G., Phys. Rev. 103, 516 (1956).Google Scholar