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Article Dans Une Revue Review of Scientific Instruments Année : 2016

A load-lock compatible system for in situ electrical resistivity measurements during thin film growth

Résumé

An experimental setup designed for in situ electrical resistance measurement during thin film growth is described. The custom-built sample holder with a four-point probe arrangement can be loaded into a high-vacuum magnetron sputter-deposition chamber through a load-lock transfer system, allowing measurements on series of samples without venting the main chamber. Electrical contact is ensured with circular copper tracks inserted in a Teflon plate on a mounting holder station inside the deposition chamber. This configuration creates the possibility to measure thickness-dependent electrical resistance changes with sub-monolayer resolution and is compatible with use of sample rotation during growth. Examples are presented for metallic films with high adatom mobility growing in a Volmer-Weber mode (Ag and Pd) as well as for refractory metal (Mo) with low adatom mobility. Evidence for an amorphous-to-crystalline phase transition at a film thickness of 2.6 nm is reported during growth of Mo on an amorphous Si underlayer, supporting previous findings based on in situ wafer curvature measurements.
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Dates et versions

hal-04456062 , version 1 (13-02-2024)

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J. Colin, Y. Diot, Ph. Guerin, B. Lamongie, F. Berneau, et al.. A load-lock compatible system for in situ electrical resistivity measurements during thin film growth. Review of Scientific Instruments, 2016, 87 (2), pp.023902. ⟨10.1063/1.4940933⟩. ⟨hal-04456062⟩
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