Atomic structures and atomic steps in the reconstruction of Pt (110) surfaces, induced by nanosecond-pulsed-laser heating, were observed in the field-ion microscope. The Pt (110) surfaces reconstructed from the (1 x 1) to the (1 x 2) structure by breaking of [110] atomic rows into fragments of two to several atoms and by lateral and cross-channel jumps of these fragments. The simultaneous jump of small rows of atoms was probably induced by surface soliton waves. The (1 x 2) structure which was observed for Pt (110) surfaces was consistent with the so-called simple missing-row model.

Direct Observation of Atomic Structures in the Surface Reconstruction of Ir and Pt (001), (110), and (131) Surfaces. Q.J.Gao, T.T.Tsong: Physical Review B, 1987, 36, 2547-56