Magnetic Manipulation of Spatially Confined Multiferroic Heuslers by Martensitic Microstructure Engineering
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F26%3A0200655" target="_blank" >RIV/00216305:26620/26:0200655 - isvavai.cz</a>
Result on the web
<a href="https://onlinelibrary.wiley.com/doi/10.1002/sstr.202500284" target="_blank" >https://onlinelibrary.wiley.com/doi/10.1002/sstr.202500284</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/sstr.202500284" target="_blank" >10.1002/sstr.202500284</a>
Alternative languages
Result language
angličtina
Original language name
Magnetic Manipulation of Spatially Confined Multiferroic Heuslers by Martensitic Microstructure Engineering
Original language description
Magnetic shape-memory (MSM) Heuslers show a strong coupling between magnetic and structural characteristics, evidencing a correlation between magnetic, thermal, and mechanical properties through a magnetostructural martensitic transformation. This functional aspect makes MSM Heuslers promising for integration into smart micro/nanodevices, including sensors, energy harvesters, and actuators. Controlling the martensitic microstructure, which determines the magnetic characteristics, is among the key points for optimization of the magnetic functional properties of these materials at different length scales. Herein, a strategy is reported for manipulating the magnetic properties of spatially confined epitaxial Ni-Mn-Ga films grown on Cr(001)//MgO(001) by twinning configuration engineering in the low temperature ferromagnetic (martensitic) phase. It is demonstrated that the twinning configurations in the continuous film and the micropatterned structures can be switched from Y-type (showing negligible magnetic stray field) into X-type (presenting significant magnetic stray field) by a postannealing process. Advanced characterization techniques enable the analysis of the atomic structure, the surface quality of the annealed samples and the "twin-switching" phenomenon. The martensitic microstructure engineering reported in this study introduces a simple method for promoting the magnetic stray-field contribution at the surface of Ni-Mn-Ga epitaxial thin films and micropatterns initially showing a negligible magnetic stray field.
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
10403 - Physical chemistry
Result continuities
Project
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Continuities
O - Projekt operacniho programu
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Small Structures
ISSN
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e-ISSN
2688-4062
Volume of the periodical
6
Issue of the periodical within the volume
11
Country of publishing house
DE - GERMANY
Number of pages
12
Pages from-to
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UT code for WoS article
001570227900001
EID of the result in the Scopus database
2-s2.0-105015447564