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

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About: In-situ studies of the martensitic transformation in epitaxial Ni-Mn-Ga films Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
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 resistivity measurements 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 and show 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. 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 resistivity measurements 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 and show 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. (en)
Title	In-situ studies of the martensitic transformation in epitaxial Ni-Mn-Ga films In-situ studies of the martensitic transformation in epitaxial Ni-Mn-Ga films (en)
skos:prefLabel	In-situ studies of the martensitic transformation in epitaxial Ni-Mn-Ga films In-situ studies of the martensitic transformation in epitaxial Ni-Mn-Ga films (en)
skos:notation	RIV/68378271:_____/09:00338431!RIV10-AV0-68378271
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(AV0Z10100520)
http://linked.open...iv/cisloPeriodika	8
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Heczko, Oleg
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Fyzikální ústav AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	319720
http://linked.open...ai/riv/idVysledku	RIV/68378271:_____/09:00338431
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	magnetic shape memory alloy; martensitic phase transformation; thin films; interfaces; twinning (en)
http://linked.open.../riv/klicoveSlovo	interfaces thin films twinning martensitic phase transformation magnetic shape memory alloy
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[521AD920590B]
http://linked.open...i/riv/nazevZdroje	Acta Materialia
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...UplatneniVysledku	2009
http://linked.open...v/svazekPeriodika	57
http://linked.open...iv/tvurceVysledku	Fähler, S. Heczko, Oleg Buschbeck, J. Niemann, R. Schultz, L. Thomas, M.
http://linked.open...ain/vavai/riv/wos	000265886900017
http://linked.open...n/vavai/riv/zamer	Specific effects in condensed systems with reduced dimension and broken symmetry
issn	1359-6454
number of pages	11 (xsd:int)

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