RT Journal Article
T1 Systematic study of the dolomite (104)surface by bimodal dynamic forcemicroscopy in ultra-high vacuum
A1 Kawai, Shigeki
A1 Pina Martínez, Carlos Manuel
A1 Bubendorf, Alexander
A1 Fessler, Gregor
A1 Glatzel, Thilo
A1 Gnecco, Enrico
A1 Meyer, Ernest
AB We have investigated the morphology and structure of dolomite MgCa.CO3/2.104/ surfaces by bimodal dynamic force microscopy with flexural and torsional resonance modes in ultra-high vacuum at room temperature. We found that the surface slowly decomposes by degassing CO2 in a vacuum and becomes covered by amorphous clusters, presumably MgO and CaO. By choosing an optimal sample preparation procedure (i.e. cleaving in a vacuum and mild annealing for stabilizing clusters for a short time), atomically clean surfaces were obtained. The complex tip–sample interaction, arising from carbonate groups and Mg and Ca atoms of the surface, induces a large variety of atomic- cale imaging features.
PB Iop Publishing Ltd
SN 0957-4484
YR 2013
FD 2013
LK https://hdl.handle.net/20.500.14352/34098
UL https://hdl.handle.net/20.500.14352/34098
LA eng
DS Docta Complutense
RD 29 abr 2024