The X-ray standing-wave technique through detection of surface-sensitive Auger electrons had determined the surface reconstruction of clean InP(110). Using the back-reflection diffraction geometry from (220) planes, it was found that the perpendicular displacements of the surface P and In atoms were 0.18 and -0.48Å, respectively, from their unrelaxed bulk positions. The use of low-energy X-rays combined with a novel method of data analysis opened up the general problem of surface reconstruction to study by using this technique.

X-Ray Standing-Wave Determination of the Clean InP(110) Surface Reconstruction. J.C.Woicik, T.Kendelewicz, K.E.Miyano, P.L.Cowan, C.E.Bouldin, B.A.Karlin, P.Pianetta, W. E.Spicer: Physical Review Letters, 1992, 68, 341-4