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Determination of the thermal conductivity tensor of the n = 7 Aurivillius phase Sr4Bi4Ti7O24
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10.1063/1.4733616
/content/aip/journal/apl/101/2/10.1063/1.4733616
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/2/10.1063/1.4733616
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Figures

Image of FIG. 1.
FIG. 1.

The Aurivillius homologous series of phases, Bi2 An −1 Bn O3 n +3. The structure consists of perovskite slabs separated by Bi2O2 2+ pyramidal layers. Small green spheres are Bi3+, large green spheres are Sr2+, and pink coordination octahedra are TiO6 2−.

Image of FIG. 2.
FIG. 2.

Schematic showing the orientation relationship between the SrTiO3 substrate surface and the resultant number of rotational twins for the three orientations used in this study, (100), (110), and (111). Colors are the same as in Fig. 1, with substrate shown in orange and cyan for clarity.

Image of FIG. 3.
FIG. 3.

XRD scans of the Sr4Bi4Ti7O24 films grown on (100), (110), and (111) SrTiO3 substrates, respectively, from top to bottom.

Image of FIG. 4.
FIG. 4.

Cross-sectional (a) high-resolution TEM (HRTEM) images and (b) electron nano-diffraction patterns of the three films grown on (100), (110), and (111) SrTiO3 substrates, respectively, from top to bottom. The TEM images and diffraction patterns are oriented with respect to the plane of the substrate lying horizontally. One of two rotational twin (growth-twin) orientations is shown for the (110) film, and one of three rotational twin orientations for the (111) film. Superlattice reflections and HRTEM measurements confirm phase-pure and epitaxial synthesis of the n = 7 Aurivillius phase Sr4Bi4Ti7O24.

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/content/aip/journal/apl/101/2/10.1063/1.4733616
2012-07-11
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Determination of the thermal conductivity tensor of the n = 7 Aurivillius phase Sr4Bi4Ti7O24
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/2/10.1063/1.4733616
10.1063/1.4733616
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