Atomic steps in the (1 x 1) to (1 x 2) surface reconstruction of Pt and Ir (110) planes using ns pulsed-laser heating could be understood only by highly correlated jumps of atoms within a small [110] atom-row. Arguments were made in favour of a simultaneous jump of the entire small [110] row of atoms; possibly stimulated by surface phonon waves propagating in the direction normal to, and also parallel to, the atom-row direction. Surface reconstruction of fcc (110) planes evolved with long-range atomic diffusion. Thus, the transition occurred relatively slowly. Reconstruction of fcc (001) planes evolved with short-range atomic movements, and the transition occurred very rapidly.

How Atoms Move in the (1 x 1) to (1 x 2) Surface Reconstruction of FCC (110) Planes. T.T.Tsong, Q.Gao: Surface Science, 1987, 182[3], L257-62