MAGNETIC STUDIES USING HEAVY-ION BEAMS

Energetic ion beams produced by heavy-ion accelerators are increasingl y finding their application for a wide variety of studies in condensed matter physics. In particular, nuclear methods like time differential perturbed angular distribution/correlation (TDPAD/TDPAC) following he avy-ion induced nuclear reaction and the recoil-implantation technique , have been extensively used for a number of studies in magnetism, esp ecially the problem of magnetic moment formation on a f/d ion, their s pm fluctuation behaviour relating to the moment stability, the Kondo e ffect, etc. Further, the unique advantage offered by these techniques has enabled scientists to produce and investigate many new magnetic sy stems which are otherwise not accessible by the conventional methods. After giving a brief review of the experimental technique, results obt ained from such studies and their implication for the general understa nding of magnetism of d/f ions in solids will be discussed. Particular emphasis will be given to the results obtained from the Pelletron Acc elerator facility at TIFR, Bombay.