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Nmr and Mössbauer Effect Studies on Diluted Heisenberg Ferromagnets and Spin-Glasses: EuxSr1−xS

Published online by Cambridge University Press:  15 February 2011

H. Lütgemeier
Affiliation:
Institut für Festkörperforschung der KFA Jülich,D–5170 Jülich, W.-Germany (F.R.G.)
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Abstract

The systematic variations of experimentally determined exchange and hyperfine (h.f.) interactions between Eu2+ ions are compared firstly within the EuX (X=0,S,Se,Te) series of compounds and secondly in the magnetic dilution system EuxSr1−xS. Reasonably relations can be established between the individual nearest and next nearest neighbour exchange interactions (J1,J2 ) and the transferred h.f. interactions (ΔB1 , ΔB2 ), respectively, by considering their variations with the Eu–Eu distances (R1,R2). Using these results, the measured mean hyperfine field, BI(x), and the ferromagnetic saturation h.f. field, B↑↑ (x), of the EuxSr1−xS system can be related reasonably well to the ferro- and paramagnetic phase boundaries, Tc(x) and θ (x), respectively.

Type
Research Article
Copyright
Copyright © Materials Research Society 1981

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References

REFERENCES

1. Zinn, W., J. Magn. Magn. Materials 3, 23a (1976).Google Scholar
2. Sauer, Ch. and Zinn, W., Physics 86–88B, 1031 (1977).Google Scholar
3. Crecelius, G., Maletta, H., Pink, H., and Zinn, W., J. Magn. Magn. Materials 5, 150 (1977).CrossRefGoogle Scholar
4. Bohn, H.G., Fischer, K.J., Köbler, U., Lütgemeier, H., and Sauer, Ch., J. Magn. Magn. Materials, 15–18, 667 (1980).Google Scholar
5. Bohn, H.G., Zinn, W., Dorner, B., and Kollmar, A., J. Appl. Phys. (Proc. M&MM Conf. Nov. 1980, Dallas, to be published 1981).Google Scholar
6. Kojima, K., Hihara, T., Kamigaichi, T., Proc. Intern. Conf. on Ferrites Sept. 1980 Kyoto (to be published).Google Scholar
7. Hihara, T., Kojima, K., Imai, T., Fujii, H., and Kamigaichi, T., J. Magn. Magn. Mater. 15–18, 665 (1980).Google Scholar
8. Maletta, H., J. Physique (Paris) 4l, C5–115 (1980).Google Scholar
9. Binder, K., Kinzel, W., and Stauffer, D., Z. Physik B36, 161 (1979).CrossRefGoogle Scholar
10. Köbler, U. and Binder, K., J. Magn. Magn. Materials 15, 313 (1980).Google Scholar
11. Kojima, K., Komaru, T., Hihara, T., and Koi, Y., J. Phys. Soc. Japan 40, 1570 (1976).Google Scholar
12. Watson, R.E. and Freeman, A.J. in: Hyperfine Interactions, Freeman, A.J. and Frankel, R.B. eds. (Academic Press, New York, 1967) p. 53.Google Scholar
13. Sawatzky, G.A., Geertsma, W., and Haas, C., J. Magn. Magn. Materials 3, 37 (1976).CrossRefGoogle Scholar
14. Binder, K. and Kinzel, W., private communication.Google Scholar