Achieving giant magnetically induced reorientation of martensitic variants in magnetic shape-memory Ni-Mn-Ga Films by microstructure engineering.

Ranzieri, Paolo; Campanini, Marco; Fabbrici, Simone; Nasi, Lucia; Casoli, Francesca; Cabassi, Riccardo; Buffagni, Elisa; Grillo, Vincenzo; Magén, César; Celegato, Federica; Barrera, Gabriele; Tiberto, Paola; Albertini, Franca

doi:10.1002/adma.201502072

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Achieving giant magnetically induced reorientation of martensitic variants in magnetic shape-memory Ni-Mn-Ga Films by microstructure engineering.

Author(s): Paolo Ranzieri ¹ , Marco Campanini ¹ , Simone Fabbrici ¹ ^, ² , Lucia Nasi ¹ , Francesca Casoli ¹ , Riccardo Cabassi ¹ , Elisa Buffagni ¹ , Vincenzo Grillo ¹ , Cesar Magén ³ , Federica Celegato ⁴ , Gabriele Barrera ⁴ , Paola Tiberto ⁴ , Franca Albertini ¹

Publication date (Electronic): Aug 26 2015

Journal: Advanced materials (Deerfield Beach, Fla.)

Publisher: Wiley

Keywords: electron holography, ferromagnetic shape-memory thin films, martensitic microstructure, multifunctional materials, twin variant reorientation induced by magnetic field

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Abstract

Giant magnetically induced twin variant reorientation, comparable in intensity with bulk single crystals, is obtained in epitaxial magnetic shape-memory thin films. It is found to be tunable in intensity and spatial response by the fine control of microstructural patterns at the nanoscopic and microscopic scales. A thorough experimental study (including electron holography) allows a multiscale comprehension of the phenomenon.

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Journal ID (iso-abbrev): Adv. Mater. Weinheim

Title: Advanced materials (Deerfield Beach, Fla.)

Publisher: Wiley

ISSN (Electronic): 1521-4095

ISSN (Print): 0935-9648

Publication date (Electronic): Aug 26 2015

Volume: 27

Issue: 32

Affiliations

[1 ] IMEM-CNR, Parco Area delle Scienze 37/A, Parma, 43124, Italy.

[2 ] MIST E-R Laboratory, via P. Gobetti 101, Bologna, 40129, Italy.

[3 ] Instituto de Nanociencia de Aragón, Campus Río Ebro, Calle Mariano Esquillor, 50018, Zaragoza, Spain.

[4 ] INRIM, Strada delle Cacce 91, Torino, 10135, Italy.

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DOI: 10.1002/adma.201502072

PubMed ID: 26180008

SO-VID: 7db3844d-68c9-43de-a604-d0b3c8247ba1

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Keywords: multifunctional materials,electron holography,ferromagnetic shape-memory thin films,martensitic microstructure,twin variant reorientation induced by magnetic field

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Keywords: multifunctional materials, electron holography, ferromagnetic shape-memory thin films, martensitic microstructure, twin variant reorientation induced by magnetic field

Achieving giant magnetically induced reorientation of martensitic variants in magnetic shape-memory Ni-Mn-Ga Films by microstructure engineering.

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