Although there are copious reports of suspected transmutation with
carbon, there is also the curious fact that carbon apparently can
become ferromagnetic while remaining carbon:
http://physicsweb.org/articles/world/17/11/7
This possibly has to do with the formation of 'excitons' of
carbon, which are larger than a bucky ball - but smaller than fine
'soot' - IOW particulates of several hundred atoms, and this
nanostructure stays active even if the particulates are bound into
a larger glob, reminiscent of the magnetic domain.
In addition to Michael's experimental evidence- there is similar
work by Naudin, Blaze Labs, Bill Alek, possibly Les Case, and
others.
It goes without saying that none of this prior work will get
proper attribution when some National Lab picks up on the idea and
does a major study with a few dozen self-promoting and fully
credentialed Phizzix-Panjandrum-muck-a-mucks....
Jones