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Experimental observation of vacancy-assisted martensitic transformation shift in Ni-Fe-Ga alloys
dc.creator | Unzueta, Iraultza | es_ES |
dc.creator | Alonso de Robador Lorente, Daniel | es_ES |
dc.creator | Cesari, Eduard | es_ES |
dc.creator | Sánchez-Alarcos Gómez, Vicente | es_ES |
dc.creator | Recarte Callado, Vicente | es_ES |
dc.creator | Pérez de Landazábal Berganzo, José Ignacio | es_ES |
dc.creator | García, José Ángel | es_ES |
dc.creator | Plazaola, Fernando | es_ES |
dc.date.accessioned | 2019-12-20T09:14:03Z | |
dc.date.available | 2019-12-20T09:14:03Z | |
dc.date.issued | 2019 | |
dc.identifier.citation | Experimental Observation of Vacancy-assisted Martensitic Transformation Shift in Ni-Fe-Ga Alloys, Unzueta, I., de R-Lorente, D. Alonso, Cesari, E., Sanchez-Alarcos, V., Recarte, V., Perez-Landazabal, J. I., Garcia, J. A., Plazaola, F. Phys. Rev. Lett., 122, 16, 165701, 7, 2019, Apr, American Physical Society, 10.1103/PhysRevLett.122.165701, https://link.aps.org/doi/10.1103/PhysRevLett.122.165701 | en |
dc.identifier.issn | 0031-9007 | |
dc.identifier.uri | https://hdl.handle.net/2454/35939 | |
dc.description.abstract | Positron annihilation lifetime spectroscopy is used to experimentally demonstrate the direct relationship between vacancies and the shift of the martensitic transformation temperature in a Ni55Fel7Ga28 alloy. The evolution of vacancies assisting the ordering enables shifts of the martensitic transformation up to 50 K. Our results confirm the role that both vacancy concentration and different vacancy dynamics play in samples quenched from the L2(1) and B2 phases, which dictate the martensitic transformation temperature and its subsequent evolution. Finally, by electron-positron density functional calculations V-Ni is identified as the most probable vacancy present in Ni55Fe17Ga28. This work evidences the capability of vacancies for the fine-tuning of the martensitic transformation temperature, paving the way for defect engineering of multifunctional properties. | en |
dc.description.sponsorship | This work is supported by the Basque Government Grant No. IT-1005-16 and by the Spanish Ministry of Economy and Competitiveness under the Projects No. MAT2015-65165-C2-R (MINECO/FEDER) and No. MAT2014-56116-C4-1-R (AEI/FEDER). I. U. acknowledges the Basque Government Grant No. PRE-2014-214. | en |
dc.format.extent | 7 p. | |
dc.format.mimetype | application/pdf | en |
dc.language.iso | eng | en |
dc.publisher | American Physical Society | en |
dc.relation.ispartof | Physical Review Letters, 2019, 122 (16) | en |
dc.rights | © 2019 American Physical Society | en |
dc.subject | Ferromagnetism | en |
dc.subject | Martensitic phase transition | en |
dc.subject | Heusler alloy | en |
dc.subject | Density functional theory | en |
dc.subject | Differential scanning calorimetry | en |
dc.subject | Electron-correlation calculations | en |
dc.subject | Positron annihilation spectroscopy | en |
dc.title | Experimental observation of vacancy-assisted martensitic transformation shift in Ni-Fe-Ga alloys | en |
dc.type | info:eu-repo/semantics/article | en |
dc.type | Artículo / Artikulua | es |
dc.contributor.department | Zientziak | eu |
dc.contributor.department | Institute for Advanced Materials and Mathematics - INAMAT2 | en |
dc.contributor.department | Ciencias | es_ES |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | en |
dc.rights.accessRights | Acceso abierto / Sarbide irekia | es |
dc.identifier.doi | 10.1103/PhysRevLett.122.165701 | |
dc.relation.projectID | info:eu-repo/grantAgreement/MINECO//MAT2015-65165-C2-1-R/ES/ | en |
dc.relation.projectID | info:eu-repo/grantAgreement/MINECO//MAT2014-56116-C4-1-R/ES/ | en |
dc.relation.publisherversion | https://doi.org/10.1103/PhysRevLett.122.165701 | |
dc.type.version | info:eu-repo/semantics/publishedVersion | en |
dc.type.version | Versión publicada / Argitaratu den bertsioa | es |