A grease for domain walls motion in HfO2-based ferroelectrics

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F22%3A00556006" target="_blank" >RIV/68378271:_____/22:00556006 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1088/1361-6528/ac4679" target="_blank" >https://doi.org/10.1088/1361-6528/ac4679</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1361-6528/ac4679" target="_blank" >10.1088/1361-6528/ac4679</a>

Result language
angličtina
Original language name
A grease for domain walls motion in HfO2-based ferroelectrics
Original language description
A new design to reduce coercive field Ec by fabricating nanolaminate Hf0.5Zr0.5O2/ZrO2 thin films is used, followed by a ensuing annealing process at 700 C. High-resolution TEM imaging detects tetragonal-like domain walls between orthorhombic polar regions. These walls decrease the potential barrier of polarization reversal in HfO2 based films compared with to the conventional domain walls with a single non-polar spacer, causing about a 40% decrease in Ec. Permittivity exhibits substantial increase near the Ec compared to the conventional Hf0.5Zr0.5O2 films justifying the higher mobility of domain walls. The tetragonal-like regions served as grease easing the movement of the domain wall and reducing Ec.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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