Determination of the thermal conductivity tensor of the n 7 Aurivillius phase Sr 4Bi 4Ti 7O 24

M. A. Zurbuchen; D. G. Cahill; J. Schubert; Y. Jia; D. G. Schlom

doi:10.1063/1.4733616

Determination of the thermal conductivity tensor of the n 7 Aurivillius phase Sr ₄Bi ₄Ti ₇O ₂₄

M. A. Zurbuchen, D. G. Cahill, J. Schubert, Y. Jia, D. G. Schlom

Research output: Contribution to journal › Article

Abstract

A challenge in the preparation of advanced materials that exist only as thin films is to establish their properties, particularly when the materials are of low symmetry or the tensor properties of interest are of high rank. Using Sr ₄Bi ₄Ti ₇O ₂₄ as an example, we show how the preparation of oriented epitaxial films of multiple orientations enables the thermal conductivity tensor of this tetragonal material with a c-axis length of 64.7 Å to be measured. The thermal conductivity tensor coefficients k ₃₃ 1.10 W m ^-1 K ^-1 and k ₁₁ k ₂₂ 1.80 W m ^-1 K ^-1 were determined by growing epitaxial Sr ₄Bi ₄Ti ₇O ₂₄ films on (100), (110), and (111) SrTiO ₃ substrates.

Original language	English (US)
Article number	021904
Journal	Applied Physics Letters
Volume	101
Issue number	2
DOIs	https://doi.org/10.1063/1.4733616
State	Published - Jul 9 2012

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thermal conductivity

tensors

preparation

symmetry

coefficients

thin films

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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Zurbuchen, M. A., Cahill, D. G., Schubert, J., Jia, Y., & Schlom, D. G. (2012). Determination of the thermal conductivity tensor of the n 7 Aurivillius phase Sr ₄Bi ₄Ti ₇O ₂₄ Applied Physics Letters, 101(2), [021904]. https://doi.org/10.1063/1.4733616

Determination of the thermal conductivity tensor of the n 7 Aurivillius phase Sr ₄Bi ₄Ti ₇O ₂₄ . / Zurbuchen, M. A.; Cahill, D. G.; Schubert, J.; Jia, Y.; Schlom, D. G.

In: Applied Physics Letters, Vol. 101, No. 2, 021904, 09.07.2012.

Research output: Contribution to journal › Article

Zurbuchen, MA, Cahill, DG, Schubert, J, Jia, Y & Schlom, DG 2012, 'Determination of the thermal conductivity tensor of the n 7 Aurivillius phase Sr ₄Bi ₄Ti ₇O ₂₄ ', Applied Physics Letters, vol. 101, no. 2, 021904. https://doi.org/10.1063/1.4733616

Zurbuchen MA, Cahill DG, Schubert J, Jia Y, Schlom DG. Determination of the thermal conductivity tensor of the n 7 Aurivillius phase Sr ₄Bi ₄Ti ₇O ₂₄ Applied Physics Letters. 2012 Jul 9;101(2). 021904. https://doi.org/10.1063/1.4733616

Zurbuchen, M. A. ; Cahill, D. G. ; Schubert, J. ; Jia, Y. ; Schlom, D. G. / Determination of the thermal conductivity tensor of the n 7 Aurivillius phase Sr ₄Bi ₄Ti ₇O ₂₄ In: Applied Physics Letters. 2012 ; Vol. 101, No. 2.

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10.1063/1.4733616