Abstract
A study of the zero-field nuclear magnetic resonance of Mn 55 and Al 27 in the ferromagnetic compound MnAlGe has been made. The hyperfine fields of Mn 55 and Al 27 nuclei extrapolated to 0 K are 177.4 kOe and 52.6 kOe respectively. Within the limits of non-interacting spin wave approximation, the intralayer and inter-layer exchange constants, J 1 and J 2 , respectively, are estimated from the temperature dependence of the resonance frequency of Mn 55 nuclei. The results are J 1 =163±3 K and J 2 =17±1 K, respectively. The difference in the temperature dependence of the normalized NMR frequency between Mn 55 and Al 27 nuclei has been observed.
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