Low energy electron loss spectroscopic study of Pd-Si(111) system |
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Authors: | K. Okuno T. Ito M. Iwami A. Hiraki |
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Affiliation: | Department of Electrical Engineering Osaka University, Suita Osaka 565, Japan |
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Abstract: | Effect of Pd deposition on a clean Si(111) surface was studied by ELS and AES methods for submonolayer [1 ML = 7.8 × 1014atomscm-2forSi(111)] to several tens of monolayers. ELS spectra showed that the electronic nature of Pd-Si bonding for ? 1 ML of Pd coverage is different from Pd2Si formed for ? 3 ML. Namely, it was shown that some critical thickness for Pd on Si(111) exist for inducing interfacial intermixing reaction at room temperature. |
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