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Martensitic transformation and magnetic anisotropy in Ni-Mn-Ga/NaCl(001) thin films probed by ferromagnetic resonance
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10.1063/1.4804376
/content/aip/journal/apl/102/18/10.1063/1.4804376
http://aip.metastore.ingenta.com/content/aip/journal/apl/102/18/10.1063/1.4804376
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

XRD profile for Ni-Mn-Ga/NaCl(001) composite at room temperature showing one (202) peak of orthorhombic unit cell at 2 = 43.9° for the film and two reflections belonging to the substrate.

Image of FIG. 2.
FIG. 2.

The temperature evolution of FMR spectrum below the Curie temperature. The magnetic field was perpendicular to the film plane. The splitting of FMR signal recoded at 320 K into two Gauss peaks shown in the inset indicates the occurrence of the martensitic transformation.

Image of FIG. 3.
FIG. 3.

Temperature dependences of the resonance field for in-plane (○) and out-of-plane (◻) configuration of the external magnetic field. The corresponding values of resonance line width are shown in the inset.

Image of FIG. 4.
FIG. 4.

Out-of-plane angular dependence of the resonance field recorded at 293 K. The line drawn through the data is a fit using the expression for magnetic free energy density, Eq. (2) , and  = 465 emu/cm,  = 2.03.

Image of FIG. 5.
FIG. 5.

Temperature dependence of the saturation magnetization, , measured by magnetometry and the effective magnetization, , obtained from FMR. The extracted value of perpendicular anisotropy field is shown in the inset.

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/content/aip/journal/apl/102/18/10.1063/1.4804376
2013-05-08
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Martensitic transformation and magnetic anisotropy in Ni-Mn-Ga/NaCl(001) thin films probed by ferromagnetic resonance
http://aip.metastore.ingenta.com/content/aip/journal/apl/102/18/10.1063/1.4804376
10.1063/1.4804376
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