Anharmonic incommensurate structure modulation in Ni-Mn-Ga martensite exhibiting highly mobile twin boundaries
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F24%3A00587919" target="_blank" >RIV/68378271:_____/24:00587919 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/24:10484191
Result on the web
<a href="https://doi.org/10.1016/j.scriptamat.2024.116251" target="_blank" >https://doi.org/10.1016/j.scriptamat.2024.116251</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.scriptamat.2024.116251" target="_blank" >10.1016/j.scriptamat.2024.116251</a>
Alternative languages
Result language
angličtina
Original language name
Anharmonic incommensurate structure modulation in Ni-Mn-Ga martensite exhibiting highly mobile twin boundaries
Original language description
We perform neutron diffraction on a bulk Ni50.0Mn27.5Ga22.5 single crystal to investigate the evolution of its fivelayered modulated (10M) martensite structure, from 300 K down to 10 K. Close to martensite transformation, the modulation is nearly commensurate, with q = 0.402 in a modulation vector (q, q, 0). Upon cooling, the shift in diffraction satellites indicates a transition to an incommensurate modulation with increasing q. However, the observed fifth-order diffraction satellites below 260 K and even more complex satellite landscape at 10 K cannot be explained by incommensurability alone. Our analysis reveals that the modulation function is highly anharmonic, encompassing Fourier components up to the eighth order. We have developed a single-parameter description of the evolution of modulation across the entire temperature interval of the 10M phase existence.
Czech name
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Czech description
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Classification
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.)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Scripta Materialia
ISSN
1359-6462
e-ISSN
1872-8456
Volume of the periodical
252
Issue of the periodical within the volume
Nov
Country of publishing house
GB - UNITED KINGDOM
Number of pages
6
Pages from-to
116251
UT code for WoS article
001284098400001
EID of the result in the Scopus database
2-s2.0-85197480224