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MÖssbauer Effect Investigation of Hydrogen Rich Ternary Hydrides of YFe2 , DyFe2 and ErFe2 *

Published online by Cambridge University Press:  15 February 2011

P. J. Viccaro ,
D. Niarchos ,
G. K. Shenoy  and
B. D. Dunlap
P. J. Viccaro
Affiliation:
Argonne National Laboratory, Argonne, Illinois 60439, USA
D. Niarchos
Affiliation:
Argonne National Laboratory, Argonne, Illinois 60439, USA
G. K. Shenoy
Affiliation:
Argonne National Laboratory, Argonne, Illinois 60439, USA
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Abstract

The hydrogen rich ternary hydride phases of RFe2Hx (R=Y Dy, Er) with x>4 have been investigated using 57Fe, 161Dy and 166Er Mössbauer spectroscopy and bulk magnetization. In all cases, the presence of hydrogen results in a dramatic reduction in the moment on Fe as well as the magnetic transition temperature. The data also imply a simultaneous weakening of the R-Fe magnetic exchange.

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Footnotes

*

Work supported by the U.S. Department of Energy.

References

REFERENCES

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