Nuclear magnetic resonance in aluminum-manganese alloys.

Abstract

This thesis reports on the behavior of the n.m.r signal from Al27 in Al and Al Mn alloys. We have obtained values of 0.162 .002% for the Knight shift and of 8.65 .2 oe. for the line width in pure Al, in good agreement with values reported elsewhere. On alloying with Mn, decreases in intensity, line width and Knight shift are observed. This behavior is readily explained by nuclear electric quadrupole interactions. The small effective magnetic moment of the Mn ions seem to have a negligible effect on the line and from that point of view Al Mn behaves essentially like Al Mg and Al Zn which have been extensively studied recently.