The room temperature adsorption of H2S on Ge(001) 2 x 1 has been studied using surface-extended x-ray-absorption fine structure, low-energy electron diffraction and Auger electron spectroscopy. The Ge(001) 2 x 1-S system formed by a saturation dose followed by an anneal to remove H has a S-Ge bond length of 2.36 +/- 0.05 angstrom, with S sitting in twofold bridge sites, consistent with breaking of the Ge-Ge dimer reconstruction. Further adsorption of H2S at low or elevated temperatures is kinetically unfavourable, and it is proposed that this is consistent with the surface Ge atoms sitting in non-ideal rather than bulk-terminated positions.
ADSORBATE-INDUCED DE-RECONSTRUCTION IN THE INTERACTION OF H2S WITH GE(001) 2X1 / K., Newstead; A. W., Robinson; D'Addato, Sergio; A., Patchett; N. P., Prince; R., Mcgrath; R., Whittle; E., Dudzik; I. T., Mcgovern. - In: JOURNAL OF PHYSICS. CONDENSED MATTER. - ISSN 0953-8984. - STAMPA. - 44(1992), pp. 8441-8446.
Data di pubblicazione: | 1992 |
Titolo: | ADSORBATE-INDUCED DE-RECONSTRUCTION IN THE INTERACTION OF H2S WITH GE(001) 2X1 |
Autore/i: | K., Newstead; A. W., Robinson; D'Addato, Sergio; A., Patchett; N. P., Prince; R., Mcgrath; R., Whittle; E., Dudzik; I. T., Mcgovern |
Autore/i UNIMORE: | |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1088/0953-8984/4/44/006 |
Rivista: | |
Volume: | 44 |
Pagina iniziale: | 8441 |
Pagina finale: | 8446 |
Codice identificativo ISI: | WOS:A1992JX09800006 |
Codice identificativo Scopus: | 2-s2.0-34248673580 |
Citazione: | ADSORBATE-INDUCED DE-RECONSTRUCTION IN THE INTERACTION OF H2S WITH GE(001) 2X1 / K., Newstead; A. W., Robinson; D'Addato, Sergio; A., Patchett; N. P., Prince; R., Mcgrath; R., Whittle; E., Dudzik; I. T., Mcgovern. - In: JOURNAL OF PHYSICS. CONDENSED MATTER. - ISSN 0953-8984. - STAMPA. - 44(1992), pp. 8441-8446. |
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