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High-Resolution Transmission Electron Microscope Study of Electron-Beam Induced Damage in some Oxide Superconductors

Published online by Cambridge University Press:  28 February 2011

Yoshio Matsui  and
Kasumi Yanagisawa
Yoshio Matsui
Affiliation:
National Institute for Research in Inorganic Materials, 1- Namiki, Tsukuba, Ibaraki 305, Japan.
Kasumi Yanagisawa
Affiliation:
Chemical Technology Research Laboratory, Kobe Steel Co. Ltd., 1–5–5 Takatsukadai, Nishi-ku, Kobe 651–22, Japan.
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Abstract

Electron-beam induced damage of some oxide superconductors is examined by high-resolution transmission electron microscopy (HRTEM), using both 1 MV high-voltage machine and conventional 200kV one. By 1 MV electron beam, both YBa2Cu4Oy and Y2Ba4Cu7Oy suffer from amorphization due to knock-on effects which is initiated at (CuO)2 double-chain sites. By 200kV beam, some of the double-chains decompose into the single-chains and precipitation of CuO crystal is induced, due to thermal heating effects. Both Bi- and Pb-based superconductors, on the other hand, suffer from amorphizations at both 1MV and 200kV. The materials relating to La2CuO4, for instance the T*-type of superconductor (Nd, Sr, Ce)2CuO4, never amorphize even by irradiations of 1000kV electron beam. These results suggest that it is possible to introduce defects or precipitates to control the microstructures of superconductors by means of electron beam irradiations.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 235: Symposium A – Phase Formation and Modification by Beam-Solid Interactions , 1991 , 635
Copyright
Copyright © Materials Research Society 1992

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References

REFERENCES

[1] Matsui, Y. & Horiuchi, S.: Studies of High Temperature Superconductors, vol.5, (Nova Sci. Pub., New York) p234 (1990).Google Scholar
[2] Raveau, B. et al.: Crystal Chemistry of High-Tc Superconducting Copper Oxides(Springer-Verlag, Berlin) p263 (1991).Google Scholar
[3] Matsui, Y. et al.: Jpn. J. Appl. Phys. 30 (1991) L64.Google Scholar
[4] Matsui, Y. et al.: Jpn. J. Appl. Phys. 30 (1991) L1375 Google Scholar
[5] Matsui, Y. et al.: Jpn. J. Appl. Phys. in press.Google Scholar
[6] Wada, T. et al.: Jpn. J. Appl. Phys. 29 (1990) L915.Google Scholar
[7] Matsui, Y. et al.: in preparations.Google Scholar
[8] Matsui, Y. et al.: Jpn. J. Appl. Phys. 27 (1988) L372.CrossRefGoogle Scholar
[9] Matsui, Y. et al.: Jpn. J. Appl. Phys. 28 (1989) L946.Google Scholar
[10] Matsui, Y. et al.: Jpn. J. Appl. Phys. 28 (1989) L1991.CrossRefGoogle Scholar
[11] Yanagisawa, K. et al.: in preparations.Google Scholar
[12] Ikeda, S. et al.: Jpn. J. Appl. Phys. 27 (1988) L2040.Google Scholar
[13] Cava, R. J. et al.: Nature 336 (1988) 211.CrossRefGoogle Scholar
[14] Akimitsu, J. et al.: Jpn. J. Appl. Phys. 27 (1988) L1859.CrossRefGoogle Scholar