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|Title:||Direct observations of the mechanism of nickel suicide formation on Si(100) and Si 0.75Ge 0.25 substrates|
|Source:||Nath, R., Yeadon, M. (2004). Direct observations of the mechanism of nickel suicide formation on Si(100) and Si 0.75Ge 0.25 substrates. Electrochemical and Solid-State Letters 7 (10) : G231-G234. ScholarBank@NUS Repository. https://doi.org/10.1149/1.1789851|
|Abstract:||The annealing of Ni layers, 12 nm thick, deposited on Si(100) and relaxed Si 0.75Ge 0.25 substrates has been studied using an ultrahigh vacuum in situ transmission electron microscope. In this paper we report direct observations of the formation and agglomeration of nickel monosilicide films, followed by the nucleation of NiSi 2 at higher temperatures in both cases. This transformation has not been observed previously in the case of Si 1-xGe x, substrates, the reaction being suppressed from 650 to ∼950°C in the presence of Ge. Our data provides strong evidence of the importance of surface relaxation in the relief of transformation-induced strain. © 2004 The Electrochemical Society. All rights reserved.|
|Source Title:||Electrochemical and Solid-State Letters|
|Appears in Collections:||Staff Publications|
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