  Magnetism is a very relevant subject that permeates our everyday lives.
However, magnetism keeps taking us from surprise to surprise which seems to
indicate that it is a phenomenon not well understood. For example, we found
that bulk amorphous palladium becomes magnetic; so, naturally one should ask,
could defective palladium develop magnetism? In particular, would amorphous
porous palladium become magnetic? Here we show that the answer to that question
is affirmative, this defective topology of Pd is magnetic, with a magnetism
that depends on the amount of sample porosity and on the topology of their
structures. Clearly, if magnetism exists in porous amorphous palladium, this
indicates the possibility of developing light-weight magnets, useful when a
maximized magnetism/weight ratio is demanded, well suited for space and
aeronautical applications.
