We have investigated the Pt(110) surface by He atom scattering. The (1 x 2) deconstruction transition at 1087 K is shown to fall in 2D Ising universality class with antiphase domain walls proliferating predominantly along the [001] direction. The surface roughening is observed at 1160 +/- 10K through a power law broadening of the anti-phase diffraction peak along the [001] direction. The two distinct phase transition confine the temperature range in which the surface is disordered but still bound to a common height level.
Deconstruction and roughening transitions on (1x2)Pt(110) / D., Cvetko; V., De Renzi; L., Floreano; Morgante, Alberto; Tommasini, Fernando. - In: SOLID STATE COMMUNICATIONS. - ISSN 0038-1098. - STAMPA. - 91:(1994), pp. 539-543. [10.1016/0038-1098(94)90370-0]
Deconstruction and roughening transitions on (1x2)Pt(110)
MORGANTE, ALBERTO;TOMMASINI, FERNANDO
1994-01-01
Abstract
We have investigated the Pt(110) surface by He atom scattering. The (1 x 2) deconstruction transition at 1087 K is shown to fall in 2D Ising universality class with antiphase domain walls proliferating predominantly along the [001] direction. The surface roughening is observed at 1160 +/- 10K through a power law broadening of the anti-phase diffraction peak along the [001] direction. The two distinct phase transition confine the temperature range in which the surface is disordered but still bound to a common height level.Pubblicazioni consigliate
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