Abstract
Using NMR, anisotropy of the hyperfine field on 57Fe nuclei was measured in Y3Fe5O12 with nonmagnetic, trivalent substitutions on d (Ga3+) and a (Y3+ - yttrium antisite defect) sites which are occupied by ferric ions in a pure, stoichiometric system. The measurements were performed by the spin-echo method at liquid helium temperature. Thorough analysis of the hyperfine field anisotropy on the 57Fe nuclei in an ideal environment and in an environment where one of Fe3+ nearest cation neighbours is replaced by the nonmagnetic impurity is given. When the Fe3+ on which the NMR is measured is on the a site and the impurity is Ga3+(d), the results may be interpreted in terms of the superposition model. On the other hand, the results for Fe3+ on the d site and Y3+(a) are in clear disagreement with the predictions of this model.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
J.B. Goodenough, Magnetism and Chemical Bond (Wiley-Interscience, New York/London, 1963).
G. Winkler, Magnetic Garnets (Vieweg and Sohn, Braunschweig/Wiesbaden, 1981).
C. Robert and F. Hartmann-Boutron, J. Phys. Rad. 23 (1962) 574.
J. Englich, M. Brabenec, P. Novák and H. Lütgemeier, J. Magn. Magn. Mater. 50 (1985) 74.
J. Kohout, J. Englich, P. Novák, K. Wagner and H. Lütgemeier, J. Magn. Magn. Mater. 140-144 (1995) 2125.
J. Kohout, H. Št?pánková, J. Englich, P. Novák and H. Lütgemeier, J. Phys. (France) IV 9 (1997) c–44.
J. Kohout, H. Št?pánková, J. Englich, P. Novák, M. Ku?era, K. Nitsch and H. de Gronckel, J. Magn. Magn. Mater. 185 (1998) 225.
H. Št?pánková, J. Kohout, P. Novák, J. Englich, E.G. Caspary and H. Lütgemeier, Aust. J. Phys. 51 (1998) 437.
H. Št?pánková, J. Kohout, P. Novák, J. Englich, H. Lütgemeier and M. Trhlík, J. Magn. Magn. Mater. 177-181 (1998) 239.
J. Kohout, Ph.D. thesis, Charles University, Prague (1996).
J. Englich, P. Novák and H. Lütgemeier, Int. J. Mod. Phys. B 12 (1998) 609.
P. Novák, J. Englich, H. Št?pánková, J. Kohout, H. Lütgemeier, K. Wagner and W. Tolksdorf, J. Phys. (France) IV 9 (1997) c–283.
A. Abragam and B. Bleaney, Electron Paramagnetic Resonance of Transition Ions (Clarendon Press, Oxford, 1970).
P. Novák, J. Englich, H. Št?pánková, J. Kohout, H. Lütgemeier, K. Wagner and W. Tolksdorf, Phys. Rev. Lett. 75 (1995) 545.
J. Noffke and H. Gollisch, Phys. Rev. B 32 (1985) 7148.
G.A. Sawatzky and F. Van der Woude, J. Phys. 35 (1974) C6–47.
A.S. Karnatchev, K.I. Kletchin, N.M. Kovtun, A.S. Moskvin and E.E. Solovyev, Zh. Eksp. Teor. Phys. 78 (1980) 1176.
M. Bonnet, A. Delapalme, H. Fuess and P. Becker, J. Phys. Chem. Solids 40 (1979) 863.
R. Gonano, E. Hunt and H. Meyer, Phys. Rev. 156 (1967) 521.
V.A. Borodin, V.D. Doroshev, T.N. Tarasenko, M.M. Savosta and P. Novák, J. Phys. Condens. Matter. 3 (1991) 5881.
International Tables for Crystallography (The Kynoch Press, Birmingham, 1952).
P. Novák, Czech. J. Phys. B 34 (1984) 1060.
R.D. Shannon, Acta Crystallogr. A 32 (1976) 751.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Štěpánková, H., Kohout, J., Englich, J. et al. Anisotropy of the Hyperfine Field on 57Fe in Pure and Substituted Yttrium Iron Garnet. Hyperfine Interactions 131, 3–19 (2000). https://doi.org/10.1023/A:1011014920070
Issue Date:
DOI: https://doi.org/10.1023/A:1011014920070