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Electrically controlled reversible and hysteretic magnetic domain evolution in nickel film/Pb(Mg1/3Nb2/3)O3]0.68-[PbTiO3]0.32 (011) heterostructure
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10.1063/1.4811249
/content/aip/journal/apl/102/24/10.1063/1.4811249
http://aip.metastore.ingenta.com/content/aip/journal/apl/102/24/10.1063/1.4811249
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Sample preparation and geometry details. (b) SEM micrograph of sample backside showing FIB milled observation window. (c) SEM micrograph of observation window edge. The window thickness is less than 100 nm. (d) Experimental diffraction pattern image of the PMN-PT (011) substrate with crystallographic axes indexed. (e) In focus bright field image of observation window with relevant crystallographic axes indexed.

Image of FIG. 2.
FIG. 2.

(Left) Piezoelectric strain data for the PMN-PT (011) substrate as afunction of applied electric field for two orthogonal in-plane directions (01-1) and (100) and the strain anisotropy Δε.

Image of FIG. 3.
FIG. 3.

(a–c) Strain gradients in the nickel thin film at various voltages as calculated by simulations, corresponding to strain states A–C in Fig. 2 , respectively. Color bar corresponds to strain anisotropy Δε = ε − ε. White and black arrows schematically show strain distribution and magnetization direction, respectively.

Image of FIG. 4.
FIG. 4.

(a–d) Unipolar piezoelectric strain on Nickel thin film/PMN-PT (011) heterostructure observed with Lorentz TEM corresponding to strain states A–D in Fig. 2 , respectively. Magnetization of domains are indicated with arrows. (a) 0 V before applied voltage, (b) 80 V (0.16 MV m), (c) 160 V (0.32 MV m), and (d) 0 V.

Image of FIG. 5.
FIG. 5.

(a, d–h) Reversing electrical polarization procedure on magnetoelectric heterostructure observed in Lorentz TEM corresponding to strain states A, D-H in Fig. 2 , respectively. (a) 0 V the substrate is pre-poled with a positive electric field. (d) −40 V, −0.08 MV m just prior to the coercive field of the PMN-PT. (e)−80 V −0.16 MV m just after passing the coercive field. (f) −160 V, −0.32 MV m. (g)−80 V, −0.16 MV m. (h) 0 V, 0 MV m.

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/content/aip/journal/apl/102/24/10.1063/1.4811249
2013-06-17
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Electrically controlled reversible and hysteretic magnetic domain evolution in nickel film/Pb(Mg1/3Nb2/3)O3]0.68-[PbTiO3]0.32 (011) heterostructure
http://aip.metastore.ingenta.com/content/aip/journal/apl/102/24/10.1063/1.4811249
10.1063/1.4811249
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