Effect of Epitaxial Alignment on Electron Transport from Quasi-Two-Dimensional Iron Silicide α-FeSi2 Nanocrystals Into p-Si(001)
- Authors: Tarasov I.A.1, Rautskii M.V.1, Yakovlev I.A.1, Volochaev M.N.1
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Affiliations:
- Kirensky Institute of Physics
- Issue: Vol 52, No 5 (2018)
- Pages: 654-659
- Section: XXV International Symposium “Nanostructures: Physics and Technology”, Saint Petersburg, Russia, June 26–30, 2017. Nanostructure Technology
- URL: https://journals.rcsi.science/1063-7826/article/view/203305
- DOI: https://doi.org/10.1134/S1063782618050330
- ID: 203305
Cite item
Abstract
Self-assembled growth of α-FeSi2 nanocrystal ensembles on gold-activated and gold-free Si(001) surface by molecular beam epitaxy is reported. The microstructure and basic orientation relationship (OR) between the silicide nanocrystals and silicon substrate were analysed. The study reveals that utilisation of the gold as catalyst regulates the preferable OR of the nanocrystals with silicon and their habitus. It is shown that electron transport from α-FeSi2 phase into p-Si(001) can be tuned by the formation of (001)—or (111)—textured α-FeSi2 nanocrystals ensembles. A current-voltage characteristic of the structures with different preferable epitaxial alignment (α-FeSi2(001)/Si(100) and α-FeSi2(111)/Si(100)) shows good linearity at room temperature. However, it becomes non-linear at different temperatures for different ORs due to different Schottky barrier height governed by a particular epitaxial alignment of the α-FeSi2/p-Si interfaces.
About the authors
I. A. Tarasov
Kirensky Institute of Physics
Author for correspondence.
Email: tia@iph.krasn.ru
Russian Federation, Krasnoyarsk, 660036
M. V. Rautskii
Kirensky Institute of Physics
Email: tia@iph.krasn.ru
Russian Federation, Krasnoyarsk, 660036
I. A. Yakovlev
Kirensky Institute of Physics
Email: tia@iph.krasn.ru
Russian Federation, Krasnoyarsk, 660036
M. N. Volochaev
Kirensky Institute of Physics
Email: tia@iph.krasn.ru
Russian Federation, Krasnoyarsk, 660036