Microfabricated ferromagnetic-shape-memory Heuslers: The geometry and size effects

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F21%3APU142048" target="_blank" >RIV/00216305:26620/21:PU142048 - isvavai.cz</a>

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S2352940721001232?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2352940721001232?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.apmt.2021.101058" target="_blank" >10.1016/j.apmt.2021.101058</a>

Result language

angličtina

Original language name

Microfabricated ferromagnetic-shape-memory Heuslers: The geometry and size effects

Original language description

Ferromagnetic-shape-memory (FSM) Heuslers are a class of smart materials, promising for integration into miniaturized thermo/magnetomechanical devices, applicable in automotive, aerospace, biology, and robotics fields. In addition to compactness and mechanical simplicity, it is crucial for the material to maintain its properties at micro and nanometer scales. This study evidences the effects of lateral dimension and geometry on the properties of FSM Heuslers in patterned epitaxially grown Ni-Mn-Ga films. In particular, arrays of microstructures with lateral sizes down to the micrometer range, having different shapes and orientations with respect to the substrate edges, are investigated. The key properties of the material are stable after the microfabrication process: the martensitic transition temperatures increase by less than 3 K and thermal hysteresis changes by only 2 K. Notably, the size and geometry (i.e. shape and orientation) of the patterned microstructures are reported to be a suitable tool for controlling the martensitic configuration. The study demonstrates selective response of a specific type of martensitic twin boundaries, i.e., X-type twin boundaries along [110] MgO and [1-10] MgO, to the shape and orientation of the microstructures showing a twin boundary selection of up to similar to 96%. The effects of lateral size, shape, and orientation on the martensitic and magnetic properties of the lithographically patterned structures are discussed. (C) 2021 Elsevier Ltd. All rights reserved.

Czech name

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Czech description

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Type

J_imp - 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

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)

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Applied Materials Today

ISSN

2352-9407

e-ISSN

—

Volume of the periodical

23

Issue of the periodical within the volume

1

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

11

Pages from-to

„101058-1“-„101058-11“

UT code for WoS article

000661184600002

EID of the result in the Scopus database

2-s2.0-85110390559