Earlier in the article it was stated that silicene is a sheet of silicon "one atom thick", Does this mean that atoms have no thickness?
two dimensional structure:
as in length times width times one atom thick.
makes sense to me...
Lurking’
Because it is only one atom thick, for practical purposes, it essentially has no thickness. For physical purposes, it would act as if it were two dimensional. It would be the closest thing to a physical 2-dimensional object that you could have in our universe, unless you could find a way to have a bunch of free quarks assemble into a sheet.
Apparently 2-dimensional objects have some interesting properties, when made with elements of this class. I'm looking forward to seeing what we can actually do with it outside of a lab.
Geometry issue. There’s no third axis in which to form and arrangement. At least that’s the way I took it.
It’s like when we say cartoons or TV are two dimensional. They technically have thickness as everything in reality has thickness.