N. M. R. STUDY OF HYPERFINE AND QUADRUPOLE INTERACTIONS IN FERROMAGNETIC GdAl2
- 1 February 1971
- journal article
- Published by EDP Sciences in Le Journal de Physique Colloques
- Vol. 32 (C1) , C1-902
- https://doi.org/10.1051/jphyscol:19711320
Abstract
A new Al27 n. m. r. spectrum is reported in ferromagnetic GdAl2. The n. m. r. lines exhibit spin echo amplitude oscillation vs. the time separation τ between the exciting r. f. pulses. A phenomenological model is suggested to account for the observed data and it is concluded that : 1) The possible anisotropy in the effective exchange Jsf is less than 1 %. 2) A sizable magnetization-dependent electric field gradient exist at the Al27 sitesKeywords
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