Probing structure and microstructure of epitaxial Ni?Mn?Ga films by reciprocal space mapping and pole figure measurements

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F10%3A00353131" target="_blank" >RIV/68378271:_____/10:00353131 - 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

Probing structure and microstructure of epitaxial Ni?Mn?Ga films by reciprocal space mapping and pole figure measurements

Original language description

The crystal structure and complex twinning microstructure of epitaxial Ni?Mn?Ga films on (1 0 0) MgO substrates was studied by X-ray diffraction using 2? scans, pole figure measurements and reciprocal space mapping (RSM). Above the martensitic transformation temperature the film consists of single austenite phase with lattice constant a = 5.81A at 419 K. At room temperature some epitaxially grown residual austenite with a = 5.79A remains at the interface with the substrate, followed by an intermediate layer exhibiting orthorhombic distortion, atrans = 6.05A, btrans = 5.87A, ctrans = 5.73A and a major fraction of 14M (7M) martensite, a = 6.16A, b = 5.79A, c = 5.48A. The seven-layered modulation of this metastable martensite structure is directly observed by RSM. The intermediate phase observed close to interface indicates the existence of an instable, pre-adaptive martensite phase with a short stacking period.

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

2010

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

58

Issue of the periodical within the volume

20

Country of publishing house

GB - UNITED KINGDOM

Number of pages

7

Pages from-to

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UT code for WoS article

000284446500012

EID of the result in the Scopus database

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