In-situ studies of the martensitic transformation in epitaxial Ni-Mn-Ga films

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F09%3A00338431" target="_blank" >RIV/68378271:_____/09:00338431 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

In-situ studies of the martensitic transformation in epitaxial Ni-Mn-Ga films

Original language description

The martensitic transformation of epitaxial Ni-Mn-Ga films is investigated with respect to changes of structure, microstructure, magnetic and electronic properties. Temperature dependent atomic force microscopy (AFM), X-ray, magnetization and resistivitymeasurements are performed in situ, during martensitic transformation of a 500 nm thick film. The combination of these methods gives a comprehensive understanding of the martensitic transformation and allows identifying differences of constrained epitaxial films. Experiments show the formation of a twinned, orthorhombic martensite with high uniaxial magnetocrystalline anisotropy from the austenite around room temperature. High resolution AFM micrographs directly reveal how martensite variants grow andshow the converging of variants nucleated at different nucleation sites. The most observed features are in agreement with a first-order transformation in Ni-Mn-Ga bulk.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2009

Confidentiality

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

Name of the periodical

Acta Materialia

ISSN

1359-6454

e-ISSN

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Volume of the periodical

57

Issue of the periodical within the volume

8

Country of publishing house

GB - UNITED KINGDOM

Number of pages

11

Pages from-to

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UT code for WoS article

000265886900017

EID of the result in the Scopus database

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