Scientists from University of
Manchester prooved that organic matter can act as a magnet. In the report they created Grapheme magnetic, thinnest and strongest material in the world. It is very thin carbon atoms set in a “chick wire structure”.
When it is untouched it has no magnetic ability. Manchester researchers won the Nobel
Prize in Physics in 2010 for showing its extraordinary properties.
Dr Irina Grigorieva and Professor
Sir Andre Geim, showed something very important for the future of graphene
in electronics.
The Manchester researchers got graphene
with no magnetic ability, then “peppered” it with atoms without magnetism or took
out carbon atoms from the chicken wire. The vacancies (empty spaces), and additional
atoms all became magnetic, just like atoms of iron.
"It is like minus multiplied by
minus gives you plus," says Dr Irina Grigorieva.
The researchers found out that “defect”
has to be far away from one another and their attentiveness has to be quite low
to become a magnetic atom. If there are too many defects added to graphene,
they cancel each other's magnetic power. In the case of vacancies, their high
concentration makes graphene
"The
observed magnetism is tiny, and even the most magnetized graphene samples would
not stick to your fridge." said Professor Geim.
"Adding this new degree of functionality can prove important for potential applications of graphene in electronics," adds Dr Grigorieva.
http://www.sciencedaily.com/releases/2012/01/120108143603.htm
ScienceDaily (Jan. 9, 2012)
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