Structure and microstructure of Ni-Mn-Ga single crystal exhibiting magnetic shape memory effect analysed by high resolution X-ray diffraction

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F16%3A00467511" target="_blank" >RIV/68378271:_____/16:00467511 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/16:10325216

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.actamat.2016.05.047" target="_blank" >http://dx.doi.org/10.1016/j.actamat.2016.05.047</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.actamat.2016.05.047" target="_blank" >10.1016/j.actamat.2016.05.047</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Structure and microstructure of Ni-Mn-Ga single crystal exhibiting magnetic shape memory effect analysed by high resolution X-ray diffraction

Popis výsledku v původním jazyce

Subtle changes of (micro-) structure can have far-reaching consequences for magnetic shape memory (MSM) effect, also called magnetic induced reorientation (MIR). Detailed X-ray structure analysis using reciprocal mapping of Ni-Mn-Ga single crystals exhibiting MIR at room temperature and prepared innsingle macrotwin orientation revealed 10M modulated structure. It indicated that the modulation wasnharmonic, i.e. commensurate, but it also showed that the difference when compared to noncommensurate mode or even to adaptive model was very small. The distinction between commensurate and non-commensurate modulation could not be reliably resolved due to large broadening of diffraction peaks. The broadening was caused by small size (less than 100 nm) of structurally coherent L21 ordered domains. The small size of these coherent domains is a result of large concentration of antiphase boundaries.

Název v anglickém jazyce

Structure and microstructure of Ni-Mn-Ga single crystal exhibiting magnetic shape memory effect analysed by high resolution X-ray diffraction

Popis výsledku anglicky

Subtle changes of (micro-) structure can have far-reaching consequences for magnetic shape memory (MSM) effect, also called magnetic induced reorientation (MIR). Detailed X-ray structure analysis using reciprocal mapping of Ni-Mn-Ga single crystals exhibiting MIR at room temperature and prepared innsingle macrotwin orientation revealed 10M modulated structure. It indicated that the modulation wasnharmonic, i.e. commensurate, but it also showed that the difference when compared to noncommensurate mode or even to adaptive model was very small. The distinction between commensurate and non-commensurate modulation could not be reliably resolved due to large broadening of diffraction peaks. The broadening was caused by small size (less than 100 nm) of structurally coherent L21 ordered domains. The small size of these coherent domains is a result of large concentration of antiphase boundaries.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Acta Materialia

ISSN

1359-6454

e-ISSN

—

Svazek periodika

115

Číslo periodika v rámci svazku

Aug

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

250-258

Kód UT WoS článku

000380083400025

EID výsledku v databázi Scopus

2-s2.0-84973880509