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Low-losses, highly tunable composite
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10.1063/1.2837621
/content/aip/journal/apl/92/4/10.1063/1.2837621
http://aip.metastore.ingenta.com/content/aip/journal/apl/92/4/10.1063/1.2837621
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

SEM micrographs of (a) 3D random BST/MgO composite with (b) a zoom of the corresponding chemical contrast image (magnesia is not homogeneously dispersed in the BST matrix, the dark area corresponds to several MgO grains), and (c) sandwich BST/MgO/BST composite and (d) BST sintered by SPS.

Image of FIG. 2.
FIG. 2.

Thermal variations of (a) dielectric permittivity and (b) losses at of spark plasma sintered BST, two-dimensional multilayer, and three-dimensional BST/MgO.

Image of FIG. 3.
FIG. 3.

Electric field tunability of the permittivity at in three-dimensional BST/MgO ceramic composite. Tunability is defined as , where and are the permittivities under and without an applied electric field, respectively.

Image of FIG. 4.
FIG. 4.

Inverse permittivity as a function of temperature at for BST, BST/MgO/BST, and SPS ceramics. Inset: values of the Curie Weiss temperature and the Curie constant obtained from the fit.

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/content/aip/journal/apl/92/4/10.1063/1.2837621
2008-01-29
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Low-losses, highly tunable Ba0.6Sr0.4TiO3∕MgO composite
http://aip.metastore.ingenta.com/content/aip/journal/apl/92/4/10.1063/1.2837621
10.1063/1.2837621
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