Abstract
Our experiments suggest that Tantalum in Chromium is non magnetic and does not clamp the S.D.W. The various transitions of chromium have been observed. On the other hand rhodium seems to couple with the S.D.W. but the interaction, if any, between rhodium and the S.D.W. does not strongly modify the shape of the S.D.W. TDPAC experiments are therefore a useful tool to investigate the magnetic properties of impurities dissolved in a chromium matrix. This is extremely interesting because the formation of a localized moment in an itinerant antiferromagnet as well as their interaction with the S.D.W.'s have never been studied. It is also interesting to note that S.D.W.'s could couple magnetic impurities at very large distances and then could give rise to a special type of spin glass.
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