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On the strain coupling across vertical interfaces of switchable multiferroic nanostructures
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10.1063/1.3204464
/content/aip/journal/apl/95/6/10.1063/1.3204464
http://aip.metastore.ingenta.com/content/aip/journal/apl/95/6/10.1063/1.3204464
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Surface morphology studied by AFM, with cosine filtered region (b) and slope distribution (d). Low magnification TEM image (c). XRD scan (e) and reciprocal space map (f) of a sample. Vertical lines in (e) and crosses in (f) mark reflection positions in bulk materials. The fits and labels S and R in (e) correspond to strained and relaxed BFO, respectively. (g) HRTEM image. (h) Deformation map along the [110] direction, the reference being taken in the STO substrate. [Scale bars correspond in (a)–(c) to 100 nm and in (g) and (h) to 5 nm.]

Image of FIG. 2.
FIG. 2.

Composite sample with . SEM images (secondary electrons, sample tilted 45° along [110] direction) before (a) and after HCl etching (b). Insets: backscattered electron images and sketches of the respective morphologies. Scale bars: 500 nm. (d) EDX spectra before (top curve) and after (bottom curve) etching. (d) XRD scans before (black curve) and after (red curve) etching. Labels S and R correspond to strained and relaxed BFO, respectively.

Image of FIG. 3.
FIG. 3.

MFM [(a) and (c)] and PFM (b) measurements of a sample (horizontal bars are 300 nm). Black and white regions in (b) show “up” and “down” ferroelectric domains in the as-grown BFO matrix, with zero response for CFO pillars. Black and white regions in (a) and (c) show CFO pillars before and after electrically poling the region with −12 V, respectively, with zero response for the BFO matrix. (d) Difference image of (a) and (c): white areas (circled in red) indicate CFO pillars magnetically switched following a reversal of the polarization in BFO.

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/content/aip/journal/apl/95/6/10.1063/1.3204464
2009-08-14
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: On the strain coupling across vertical interfaces of switchable BiFeO3–CoFe2O4 multiferroic nanostructures
http://aip.metastore.ingenta.com/content/aip/journal/apl/95/6/10.1063/1.3204464
10.1063/1.3204464
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