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The effect of magnetocrystalline anisotropy on the domain structure of patterned Fe2CrSi Heusler alloy thin films
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10.1063/1.4818800
/content/aip/journal/jap/114/7/10.1063/1.4818800
http://aip.metastore.ingenta.com/content/aip/journal/jap/114/7/10.1063/1.4818800
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Figures

Image of FIG. 1.
FIG. 1.

(a) Out-of-plane 2/ XRD pattern of a sample with  = 50 nm. The left panel of the inset shows scans of MgAlO(220) and FeCrSi(220) planes. The right panel of the inset shows a scan of the FeCrSi (111) plane.

Image of FIG. 2.
FIG. 2.

Magnetic properties of continuous FeCrSi thin films with  = 35 nm, measured using VSM at room temperature. (a) The direction of the in-plane external magnetic field is given by the angle from [110] direction of FeCrSi. (b) loops measured at  = 45° (black squares) and 90° (red triangles). (c) / as a function of , where and stand for the saturation magnetization and remnant magnetization, respectively. The angular plot of 180° to 360° is the mirrored one of 0° to 180°. The gray line represents the simulated result.

Image of FIG. 3.
FIG. 3.

Domain structures in FeCrSi thin film elements obtained from XMCD-PEEM imaging at the Fe edge. All the images were taken in remnant states after magnetic saturation (with a magnetic field of about 100 mT). (a) The edges of square elements are parallel to [100] or [010], which are the easy axes of FeCrSi. (b) The edges of the squares are parallel to the hard axes ([110] or [−110]) of the biaxial anisotropy. In Figs. 3(a) and 3(b) , “L” and “S” denoted in the images indicate Landau and S-states, respectively. (c) Disk-shaped elements with various diameters. “V” and “S” denoted in the images indicate vortex and S-states, respectively. The gray scale bars indicate the magnetic contrast direction. In Figs. 3(a) and 3(b) , arrows are plotted in the domain patterns to indicate the directions of magnetization.

Image of FIG. 4.
FIG. 4.

Magnetization process in FeCrSi thin film elements obtained from XMCD-PEEM imaging. Images were taken at remnant states after applying magnetic field. (a) Disk-shaped elements with diameters of 2.5 m (upper panels) and 2.0 m (lower panels). (b) Zigzag wires with 0.5 m, 1.0 m, and 2.0 m. The wires in upper panels have smaller angles of corners than those in the wires shown in lower panels. In the upper left panel, the crystalline orientation of FeCrSi is denoted. The gray scale bars indicate the magnetic contrast direction.

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/content/aip/journal/jap/114/7/10.1063/1.4818800
2013-08-19
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: The effect of magnetocrystalline anisotropy on the domain structure of patterned Fe2CrSi Heusler alloy thin films
http://aip.metastore.ingenta.com/content/aip/journal/jap/114/7/10.1063/1.4818800
10.1063/1.4818800
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