A reconstructed surface of InP (001) substrate, grown by metalorganic vapour phase epitaxy under atmospheric hydrogen environment, was investigated by using grazing incident X-ray diffraction. Fractional-order diffractions of (n/2 m) were observed, showing the existence of a (2 x 1) domain on the surface. Calculations based on the P-dimer model suggest that there were P dimers whose bonding was parallel to the [¯110] direction and indium displacement in the second layer.

Reconstruction of an InP(001) Surface Grown by Metalorganic Vapor Phase Epitaxy in Atmospheric Hydrogen Environment. T.Kawamura, Y.Watanabe, Y.Utsumi, K.Uwai, J.Matsui, Y.Kagoshima, Y.Tsusaka, S.Fujikawa: Applied Physics Letters, 2000, 77[7], 996