Phys. Rev. Focus24, 9 (2009) – Published September 4, 2009
According to a new theory, the extreme hardness of new layered materials comes from the strength of chemical bonds that are oriented perpendicular to the deforming force, rather than parallel, as might be expected.
Phys. Rev. Focus23, 20 (2009) – Published June 12, 2009
A fraction of the soot particles produced in a flame can have a more rod-like, rather than bush-like structure, contradicting the conventional theory, which is relevant for industrial products and the atmosphere.