Giant anisotropic piezoresponse of layered ZrSe3

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F24%3A43930262" target="_blank" >RIV/60461373:22310/24:43930262 - isvavai.cz</a>
Result on the web
<a href="https://pubs.rsc.org/en/content/articlepdf/2025/nh/d4nh00539b" target="_blank" >https://pubs.rsc.org/en/content/articlepdf/2025/nh/d4nh00539b</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/d4nh00539b" target="_blank" >10.1039/d4nh00539b</a>

Result language
angličtina
Original language name
Giant anisotropic piezoresponse of layered ZrSe3
Original language description
We investigated the effect of uniaxial strain on the electrical properties of few-layer ZrSe3 devices under compressive and tensile strains applied up to ±0.62% along different crystal directions. We observed that the piezoresponse, the change in resistance upon application of strain, of ZrSe3 strongly depends on both the direction in which electrical transport occurs and the direction in which uniaxial strain is applied. Notably, a remarkably high anisotropy in the gauge factor for a device with the transport occurring along the b-axis of ZrSe3 with GF = 68 when the strain is applied along the b-axis was obtained, and GF = 4 was achieved when strain is applied along the a-axis. This leads to an anisotropy ratio of almost 90%. Devices whose transport occurs along the a-axis, however, show much lower anisotropy in gauge factors when strain is applied along different directions, leading to an anisotropy ratio of 50%. Furthermore, ab initio calculations of strain dependent change in resistance showed the same trends of the anisotropy ratio as obtained from experimental results for both electrical transport and strain application directions, which were correlated with bandgap changes and different orbital contributions. © 2025 The Royal Society of Chemistry.
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
—
OECD FORD branch
10402 - Inorganic and nuclear chemistry

Project
<a href="/en/project/LL2101" target="_blank" >LL2101: Next Generation of 2D Monoelemental Materials</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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