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Chrobak, Dariusz
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Publications (7/7 displayed)
- 2023Comprehensive structural changes in nanoscale-deformed silicon modelled with an integrated atomic potentialcitations
- 2023Comprehensive structural changes in nanoscale-deformed silicon modelled with an integrated atomic potentialcitations
- 2022Influence of molybdenum on the microstructure, mechanical properties and corrosion resistance of Ti20Ta20Nb20(ZrHf)20-xMox (Where: x = 0, 5, 10, 15, 20) high entropy alloyscitations
- 2021On Incipient Plasticity of InP Crystal: A Molecular Dynamics Studycitations
- 2018Evolution of glassy carbon under heat treatment : correlation structure-mechanical propertiescitations
- 2016Structure-Dependent Mechanical Properties of ALD-Grown Nanocrystalline BiFeO3 Multiferroicscitations
- 2016Structure-Dependent Mechanical Properties of ALD-Grown Nanocrystalline BiFeO3 Multiferroicscitations
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article
Structure-Dependent Mechanical Properties of ALD-Grown Nanocrystalline BiFeO3 Multiferroics
Abstract
The present paper pertains to mechanical properties and structure of nanocrystalline multiferroic BeFiO3 (BFO) thin films, grown by atomic layer deposition (ALD) on the Si/SiO2/Pt substrate. The usage of sharp-tip-nanoindentation and multiple techniques of structure examination, namely, grazing incidence X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy, and energy dispersive X-ray spectrometry, enabled us to detect changes in elastic properties (95 GPa≤E≤118 GPa) and hardness (4.50 GPa≤H≤7.96 GPa) of BFO after stages of annealing and observe their relation to the material’s structural evolution. Our experiments point towards an increase in structural homogeneity of the samples annealed for a longer time. To our best knowledge, the present report constitutes the first disclosure of nanoindentation mechanical characteristics of ALD-fabricated BeFiO3, providing a new insight into the phenomena that accompany structure formation and development of nanocrystalline multiferroics. We believe that our systematic characterization of the BFO layers carried out at consecutive stages of their deposition provides pertinent information which is needed to control and optimize its ALD fabrication.