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March 1977
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4 Reads
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2 Citations
Thin Solid Films
The optical behaviour of thin silver films subjected to thermal cycles (7–273 K) was studied. It is shown that the optical behaviour of these deposits depends on both thickness and substrate temperature during film preparation. Only some of the deposits are stable after a first annealing.
February 1977
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2 Reads
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1 Citation
Thin Solid Films
In this paper we show that different results are obtained when a silver film of given thickness is deposited in a single evaporation and when it is deposited by the stacking of successive layers. With stacking, the formation of continuous film is delayed. Specific properties are observed for layers evaporated onto substrates at 10 K. In the absence of free electron absorption (very thin films) our results for these films, when analysed according to the theory of David, seem to indicate that the grains grow by maintaining their ellipsoidal shape and the corresponding ratio of the axes. These grains begin to flatten only under Drude absorption. This effect does not seem to occur for the evaporation of successive layers on substrates which are not cooled; here, the grain shape seems to change in a continuous manner.
