The growth of silver deposited on the GaAs(001)-(2x4) surface has been investigated via scanning tunneling microscopy (STM). Silver aggregates in the Volmer-Weber mode, forming hut-shaped islands whose average dimension increases according to the power law Theta(1/z), with z approximate to 1.5 and Theta being the number of silver atoms deposited at constant rate on the substrate. We found that 80% of the islands are elongated in the [110] direction and bounded by 310 facets, while the remaining 20% are elongated in the [(1) over bar 10] direction and bounded by 210 facets. (C) 2000 Elsevier Science B.V. All rights reserved.
Dynamic behavior of silver islands growing on GaAs(001)2 × 4 substrate / Fanfoni, Massimo; Placidi, E.; Arciprete, F.; Patella, F.; Motta, N.; Balzarotti, A.. - In: SURFACE SCIENCE. - ISSN 0039-6028. - 445:1(2000), pp. L17-L22. [10.1016/S0039-6028(99)01099-7]
Dynamic behavior of silver islands growing on GaAs(001)2 × 4 substrate
Placidi E.;Motta N.;
2000
Abstract
The growth of silver deposited on the GaAs(001)-(2x4) surface has been investigated via scanning tunneling microscopy (STM). Silver aggregates in the Volmer-Weber mode, forming hut-shaped islands whose average dimension increases according to the power law Theta(1/z), with z approximate to 1.5 and Theta being the number of silver atoms deposited at constant rate on the substrate. We found that 80% of the islands are elongated in the [110] direction and bounded by 310 facets, while the remaining 20% are elongated in the [(1) over bar 10] direction and bounded by 210 facets. (C) 2000 Elsevier Science B.V. All rights reserved.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
