<div class="csl-bib-body">
<div class="csl-entry">Cao, Y., Xu, Y., Khmelevskyi, S., Avdeev, M., Wang, C. W., Hu, S., Ohara, K., Xia, Y., Chen, X., Li, Q., Deng, J., Miao, J., Lin, K., & Xing, X. (2023). Interplanar Magnetic Orders and Symmetry-Tuned Zero Thermal Expansion in Kagomé Metal (Zr,Ta)Fe₂. <i>Chemistry of Materials</i>, <i>35</i>(21), 9167–9174. https://doi.org/10.1021/acs.chemmater.3c01894</div>
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dc.identifier.issn
0897-4756
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/208499
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dc.description.abstract
An alternative strategy was proposed for a family of kagomé metals (Zr,Ta)Fe2 to tailor thermal expansion by utilizing thermodynamic phase stability rather than by conventionally altering chemical composition. An isotropic zero thermal expansion (ZTE, αl ∼ + 0.9 × 10-6 K-1, 10-430 K) is demonstrated in high-quality cubic ingots over a superior magnetic ordering temperature window up to 430 K. A combined neutron diffraction, Mössbauer spectrum, and theoretical calculations analysis fundamentally uncover that the magnetic ordering of adjacent kagomé Fe-layers intimately changes from antiferromagnetic to ferromagnetic on transforming from hexagonal to cubic symmetry. Due to lifting of the interplanar magnetic frustration, magnetic ordering is enhanced and enables a strong temperature-induced longitudinal spin fluctuations, thus leading to large magnetic compensation for lattice thermal expansion.
en
dc.language.iso
en
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dc.publisher
AMER CHEMICAL SOC
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dc.relation.ispartof
Chemistry of Materials
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dc.subject
Negative Thermal Expanstion
en
dc.subject
Magnetism
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dc.subject
Metallic Alloys
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dc.title
Interplanar Magnetic Orders and Symmetry-Tuned Zero Thermal Expansion in Kagomé Metal (Zr,Ta)Fe₂
