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The sweep rate dependence of the electrical control of magnetic coercivity
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10.1063/1.3673829
/content/aip/journal/jap/111/7/10.1063/1.3673829
http://aip.metastore.ingenta.com/content/aip/journal/jap/111/7/10.1063/1.3673829
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(Color online) Sample schematic. (a) Cross sectional view of sample [B]: Glass/Pt (50 nm)/Co (2.5 Å – 21.5 Å) / [P(VDF-TrFE) 70:30] 100 ML/Al (26 nm). The Co wedge angle was 2.7 × 10−6 degree. (b) Top view of the sample. LMOKE and PMOKE were done on the thick and thin edge respectively as shown in the diagram. (c) Ferroelectric polarization hysteresis loop as measured by the pyroelectric current versus applied voltage.

Image of FIG. 2.
FIG. 2.

(Color online) Magnetic coercivity as a function of sweep rate. (a) LMOKE measurements of sample set [A] consisting of bare Co on a Pt (50 nm) seed layer. With increasing Co thickness, the dependence of the coercivity on sweep rate decreases. (b) LMOKE and PMOKE measurements of sample [B]. The solid red and black data are for LMOKE measurements at a Co thickness of 19.5 Å with the symbol direction depicting the FE polarization direction. The in-plane magnetic coercivity for ferroelectric polarization pointing down is always less than for polarization pointing up. The open red and black data are for PMOKE measurements at a Co thickness of 10.5 Å. The out-of-plane coercivity for up polarization is always less than for down polarization. The lines are guides to the eye.

Image of FIG. 3.
FIG. 3.

(Color online) The normalized electric field induced difference in coercivity, , as a function of magnetic field sweep rate, showing a substantial dependence. (a) In-plane LMOKE measurements for a Co thickness of 19.5 Å, and (b) out-of-plane PMOKE measurements for a Co thickness of 10.5 Å.

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/content/aip/journal/jap/111/7/10.1063/1.3673829
2012-02-28
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: The sweep rate dependence of the electrical control of magnetic coercivity
http://aip.metastore.ingenta.com/content/aip/journal/jap/111/7/10.1063/1.3673829
10.1063/1.3673829
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