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Article Dans Une Revue Physical Review B: Condensed Matter and Materials Physics (1998-2015) Année : 2006

Elastic relaxations and interactions for vicinal and self-organized surfaces: Role of crystalline anisotropy

Bernard Croset
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Geoffroy Prévot

Résumé

We present a calculation of the elastic displacements due to periodic lines of force at a surface or buried under the surface. This applies, for example, to steps on vicinal surfaces or to self-organized one-dimensional systems. The choice of a calculation in the reciprocal space allows a detailed description of the topography of the displacement field. Far from the surface, the elastic crystal behaves like a low-q filter and the displacement topography does not depend on the details of the force distribution but mainly on the surface orientation. Near the surface, vortices always appear; their characteristics depend mainly on the force orientation rather than the surface orientation. For step-step interactions, the vortices are responsible for the important role of the lever arm orientation of the dipoles associated with steps.
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Dates et versions

hal-00510744 , version 1 (20-08-2010)

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Bernard Croset, Geoffroy Prévot. Elastic relaxations and interactions for vicinal and self-organized surfaces: Role of crystalline anisotropy. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2006, 73, pp.045434. ⟨10.1103/PhysRevB.73.045434⟩. ⟨hal-00510744⟩
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