Role of hydrogen evolution during epitaxial electrodeposition of Fe on GaAs
Leistner K, Duschek K, Zehner J, Yang M, Petr A, Nielsch K, Kavanagh KL (2018)
Publication Type: Journal article
Publication year: 2018
Journal
Book Volume: 165
Pages Range: H3076-H3079
Journal Issue: 4
DOI: 10.1149/2.0071804jes
Abstract
The electrode reactions during the initial stages of Fe electrodeposition on GaAs from a sulfate-based aqueous electrolyte, were investigated. Electrochemical quartz microbalance measurements were carried out to distinguish hydrogen evolution from Fe deposition. For conditions with a lower hydrogen evolution rate, hemispherical Fe nanoparticles with negligible in-plane magnetic anisotropy are obtained. In contrast, when hydrogen evolution dominates over Fe electrodeposition, the deposited nanoparticles exhibit a defined faceted shape, crystallographic alignment and magnetic in-plane anisotropy. This beneficial impact of hydrogen evolution on the epitaxy is discussed with regard to the role of hydrogen adsorption during Fe/GaAs interface formation.
Involved external institutions
Simon Fraser University
Canada (CA)
Leibniz-Institut für Festkörper- und Werkstoffforschung Dresden e.V. (IFW) / Leibniz Institute for Solid State and Materials Research Dresden
Germany (DE)
Canada (CA)
Leibniz-Institut für Festkörper- und Werkstoffforschung Dresden e.V. (IFW) / Leibniz Institute for Solid State and Materials Research Dresden
Germany (DE)
How to cite
APA:
Leistner, K., Duschek, K., Zehner, J., Yang, M., Petr, A., Nielsch, K., & Kavanagh, K.L. (2018). Role of hydrogen evolution during epitaxial electrodeposition of Fe on GaAs. Journal of The Electrochemical Society, 165(4), H3076-H3079. https://doi.org/10.1149/2.0071804jes
MLA:
Leistner, Karin, et al. "Role of hydrogen evolution during epitaxial electrodeposition of Fe on GaAs." Journal of The Electrochemical Society 165.4 (2018): H3076-H3079.
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