01499nas a2200169   4500008004100000245008500041210006900126260000800195300001400203490000600217520083500223653008401058100002001142700002001162700003001182856011701212       2007                        eng d00aFerromagnetic resonance in nanomagnetic metal core and noble metal shell systems0 aFerromagnetic resonance in nanomagnetic metal core and noble met  cSEP  a3134-31390 v93 a<p>The change in the line widths in the ferromagnetic resonance (FMR) spectra of Co and Ni nanoparticles upon shell formation with noble metals like gold or silver are described. The NicoreAgshell, CocoreAgshell, and CocoreAushell nanoparticles were prepared by a simple transmetallation reaction between the Co and Ni nanoparticles and the Ag+ or AuCl−4 ions. It is revealed that the FMR line width decreases upon Ag shell formation whereas it increases upon core–shell composite formation with Au. Several probable explanations such as the differences in size distributions before and after the reaction or the changes occurring in shape anisotropy of the particles due to the shell formation or the different extents of electronic interaction between the core and shell materials have been offered for this observation.</p>10aFmr Study; Line Width Comparison; Magnetic Core-Noble Metal Shell Nanoparticles1 aBala, Tanushree1 aEnoki, Toshiaki1 aPrasad, Bhagavatula L. V.  uhttps://library.ncl.res.in/content/ferromagnetic-resonance-nanomagnetic-metal-core-and-noble-metal-shell-systems