Complete structural studies of long period stacking ordered (LPSO) phases in the Y-Ni-Mg system by 3D electron diffraction

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F25%3A00637461" target="_blank" >RIV/68378271:_____/25:00637461 - isvavai.cz</a>
Result on the web
<a href="https://hdl.handle.net/11104/0368319" target="_blank" >https://hdl.handle.net/11104/0368319</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.actamat.2025.121279" target="_blank" >10.1016/j.actamat.2025.121279</a>

Result language
angličtina
Original language name
Complete structural studies of long period stacking ordered (LPSO) phases in the Y-Ni-Mg system by 3D electron diffraction
Original language description
The crystal structures of three Y-Ni-Mg LPSO phases were directly solved from diffraction data of X-rays ((Mg@Y8Ni6)Mg18, tI66-Nd8+xRu6Mg19-x) and electrons ((Mg@Y8Ni6)16Mg505 and (Mg@Y8Ni6)3Mg154)). The latter two are modulated structures described in 6D(Fm-3m(alpha 00)000(0 alpha 0)000(00 alpha)000, q1 = 0.441(6) a*, q2 = 0.441(6) b*, and q3 = 0.441(6) c*) and 5D (R-3c(alpha alpha 0)00(-2 alpha,alpha 0)00, q1 = 0.1457(7) a* + 0.1457(7) b*, q2 =-0.2915(7) a*+ 0.1457(7) b*) superspaces, respectively. The 3D electron diffraction was applied here for the first time to LPSO compounds, turning out to be the only method successfully overcoming the numerous problems hampering their complete structure solution.
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
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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