Figure 3

SEM images of the self-assembly of PS-b-PDMS on magnetic media with varying surface roughnesses and solvent annealed in THF and 6:1 toluene-heptane solvent systems.
The surface roughness of granular FePt-C magnetic media was modified by spin-coating one and five layers of TranSpin to achieve Rrms of 8.2 Å and 5.0 Å, respectively.