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Large internal stress-assisted twin-boundary motion in Ni2MnGa ferromagnetic shape memory alloy
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10.1063/1.3645626
/content/aip/journal/apl/99/14/10.1063/1.3645626
http://aip.metastore.ingenta.com/content/aip/journal/apl/99/14/10.1063/1.3645626
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Figures

Image of FIG. 1.
FIG. 1.

(Color online) 2D x-ray diffraction patterns collected for a zero-field-cooled NiMnGa single crystal at (a) 273.5 K and (b) 265 K. The same sample was then heated to room temperature and cooled to 250 K (c) under a magnetic field of 6.5 T and followed by (d) turning the magnetic field to 0 T. The applied magnetic field direction presented in the [001]P-[101]P-[111]P orientation triangle with respect to the crystallographic coordinate of parent phase is displayed in the inset of (c). The lines are only visual guides.

Image of FIG. 2.
FIG. 2.

(Color online) (a) 2D x-ray diffraction patterns for a NiMnGa single crystal zero-field-cooled to 265 K after thermo-magnetic training and (b) the corresponding ()M diffraction profiles from MTV-II. (c) 2D x-ray diffraction patterns for the sample zero-field-cooled to 265 K and followed by turning the magnetic field to 0.6 T. (d) The changes in integrated intensity for ()M diffraction peak from MTV-I and -II as a function of applied magnetic fields. The lines are only visual guides.

Image of FIG. 3.
FIG. 3.

(Color online) Schematic illustration on the effect of defects on the nucleation of martensite variants and the variant configuration before and after thermo-magnetic training.

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/content/aip/journal/apl/99/14/10.1063/1.3645626
2011-10-04
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Large internal stress-assisted twin-boundary motion in Ni2MnGa ferromagnetic shape memory alloy
http://aip.metastore.ingenta.com/content/aip/journal/apl/99/14/10.1063/1.3645626
10.1063/1.3645626
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