The interactions of D2O with the Fe3O4(111) and the biphase ordered structu
res on alpha-Fe2O3(0001) were studied with X-ray photoelectron spectroscopy
(XPS), low energy electron diffraction, thermal desorption, and mass spect
roscopy of recoiled ions. These studies indicate that D2O is weakly bound t
o the surface and that virtually none exists at the surface after a 10 Lang
muir dose at 300 K. However, XPS indicates that when the sample is dosed wi
th 3 Langmuirs at 85 K, a significant amount of molecular D2O is bound to t
he surface, with a lesser amount of hydroxyls present as well. (C) 1999 Els
evier Science BN. All rights reserved.