Missing "sheets" in the reciprocal space representation of the disordered surface with one-dimensional domain boundaries

One-dimensional disorder in a reconstructed surface can give rise to sheetl ike structures in reciprocal space. For disorder caused by one-dimensional domain boundaries such as those that occur on the GaAs{100}(2 x 4) surface, sheetlike structures are only present at fractional order diffraction feat ures. The absence of these sheets at integral diffraction features is expla ined using kinematic theory of diffraction and "selection rules" for these sheetlike structures are established. Applications of these rules are demon strated using optical transmission diffraction.