Talk:Surface states

The physical origin of surface states is still contraversial.

Some scientists believe that it is due to (extrinsic) fabrication procedures.

Some believe that it is intrinsic and due to the sharp change in the Density of States.

I think you should show both these views. —Preceding unsigned comment added by 128.46.213.219 (talk) 20:05, 15 September 2008 (UTC)