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Time- and vector-resolved Kerr microscopy of hard disk writers
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10.1063/1.3665957
/content/aip/journal/apl/99/23/10.1063/1.3665957
http://aip.metastore.ingenta.com/content/aip/journal/apl/99/23/10.1063/1.3665957
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(Color online) The TRSKM setup for measurements of magnetization dynamics within perpendicular inductive write-head structures. P:polarizer.

Image of FIG. 2.
FIG. 2.

(Color online) (a) Schematic layout of the write head structure, (b) reflectivity image acquired by TRSKM defining positions A-F where TR Kerr signals were acquired, (c) pulse waveform acquired immediately before the device, and (d) TR Kerr signal acquired from position B. The points highlighted on the Perp. component curve correspond to time delays at which magnetic images were acquired. PW: paddle width (6.3 μm), BW: bridge width (0.4 μm), BL: bridge length (2 μm), SA: symmetry axis, FA1, 2: flare angle 1(30°) and 2(62°), and C1, 2, 3: coil winding 1, 2, and 3.

Image of FIG. 3.
FIG. 3.

TR Kerr signals of three components of magnetization (perpendicular, parallel, and polar) at positions A-F shown in Fig. 2(b).

Image of FIG. 4.
FIG. 4.

TR Kerr images for three components of the dynamic magnetization. The contrast for a particular component is normalized to the maximum Kerr amplitude observed for that component within the series. Black/white corresponds to −/+ z-direction, −/+ x-direction, and +/− y-direction for the polar, perpendicular, and parallel components, respectively. Black (white) denote positive (negative) Kerr amplitude.

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/content/aip/journal/apl/99/23/10.1063/1.3665957
2011-12-06
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Time- and vector-resolved Kerr microscopy of hard disk writers
http://aip.metastore.ingenta.com/content/aip/journal/apl/99/23/10.1063/1.3665957
10.1063/1.3665957
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