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Twinning Mechanism in PrCo2Cx Magnetic Phase

Published online by Cambridge University Press:  10 February 2011

Lijun Wu ,
Weimin Bian  and
Yimei Zhu
Lijun Wu
Affiliation:
Department of Applied Science, Brookhaven National Laboratory, Upton, NY 11973
Weimin Bian
Affiliation:
Department of Applied Science, Brookhaven National Laboratory, Upton, NY 11973
Yimei Zhu
Affiliation:
Department of Applied Science, Brookhaven National Laboratory, Upton, NY 11973
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Abstract

A magnetic rhombohedral PrCo2Cx (x=0.05∼0.25) phase (space group R3m), which is heavily twinned along the {110} and {211} planes, was identified. The twinning mechanism was explored by analyzing the reduction of crystal symmetry due to the cubic-rhombohedral phase transformation. The origin of the twinning and the formation of four twin variants were attributed to the insertion of carbon interstitials into Co4 tetrahedrons along the 3 axis in the rhombohedral lattice, which corresponds to one of the four equivalent <111> axes of its parent PrCo2 cubic-lattice.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 472: Symposium I – Polycrystalline Thin Films - Structure, Texture, Properties..III , 1997 , 149
Copyright
Copyright © Materials Research Society 1997

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References

REFERENCES

1. On leave from Materials Testing Center, Northeastern University, Shenyang 110006, China.Google Scholar
2. Strnat, K.J. and Strnat, R.M.W., J. Magn. Magn. Mater. 100, p. 38 (1991).Google Scholar
3. Fuerst, C.D. and Brewer, E.G., J. Appl. Phys. 74, p. 6907 (1993).Google Scholar
4. Fuerst, C.D. and Brewer, E.G., J. Appl. Phys. 75, p. 6637 (1994).Google Scholar
5. Fuerst, C.D., Herbst, J.F., Murphy, C.B. and Van Wingerden, D.J., J. Appl. Phys. 74, 4651 (1993).Google Scholar
6. Lee, R.W., Appl. Phys. Lett. 46, p. 790 (1985).Google Scholar
7. Lewis, L.H., Bian, W., Zhu, Y. and Welch, D.O., J. Appl. Phys. 79, p. 351 (1996).Google Scholar
8. Wallace, W.E., Rare Earth Intermetallics, Academic Press, New York, 1973, pp. 147.Google Scholar
9. Zhu, Y., Suenaga, M., Tafto, J. and Welch, D.O., Phys. Rev. B (R.C.) 44, p. 2871 (1991).Google Scholar
10. Calbick, C.J. and Marcus, R.B., Acta Cryst. 23, p. 12 (1967).Google Scholar
11. Van Tendeloo, G. and Amelinckx, S., Acta Cryst., A30, p. 431 (1974).Google Scholar
12. Acknowledgments: supported by the U.S. DOE, under Contract No. DE-AC02–76CH00016.Google Scholar