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Epitaxial Growth of (Na,K)NbO3 Films by Pulsed Laser Deposition

  • K. Sakurai (a1) (a2), T. Hanawa (a1) (a2), N. Kikuchi (a1) (a2), K. Nishio (a2), K. Tonooka (a1), R. Wang (a1), H. Bando (a1) and H. Takashima (a1)...


(Na,K)NbO3 is a promising candidate for lead-free piezoelectric materials. (Na1-xKx)NbO3 films (x = 0.3–0.7) were epitaxially grown on a (100)SrTiO3 substrate via pulsed laser deposition. The effects of substrate temperature and oxygen pressure during deposition on the crystallinity of the films were examined: both parameters affected the mosaic spread of the crystallites and the formation of an impurity phase. In this study, the optimum conditions for the preparation of highly crystalline films were a substrate temperature of 800 °C and oxygen pressure of ∼60 Pa. The lattice constants parallel and perpendicular to the substrate surface responded differently to changes in x: the constant parallel to the surface increased with increasing x, while the constant perpendicular to the surface was maximized at x = 0.5. The difference in the dependence of the lattice constants could be explained by the elastic distortion of the lattice.



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1. Poulin, G., Sarraute, E. and Costa, F., Sensors and Actuators A 116, 461 (2004)
2. Beeby, S. P., Tudor, M. J. and White, N. M., Meas. Sci. Technol. 17, R175 (2006)
3. “Adaptation to scientific and technical progress of Annex II to Directive 200/53/EC (ELV) and of the Annex to Directive 2002/95/EC (RoHS) Final Report”, Öko-Institute e.V.-Institute for Applied Ecology, Germany
4. Saito, T., Wada, T., Adachi, H. and Kanno, I., Jpn. J. Appl. Phys. 43, 6627 (2004)
5. Nakashima, Y., Sakamoto, W., Maiwa, H., Shimura, T. and Yogo, T., Jpn. J. Appl. Phys. 46, L311 (2004)
6. Saito, Y., Takao, H., Tani, T., Nonoyama, T., Takatori, K., Homma, T., Nagaya, T. and Nakamura, M., Nature 432, 84 (2004)
7. Wang, R., Bando, H. and Itoh, M., IMF-ISAF 2009 Conf. Xi’an, DO-033, (2009)
8. Shibata, K., Suenaga, K., Nomoto, A. and Mishima, T., Jpn. J. Appl. Phys. 48, 121408 (2009)
9. Wakasa, Y., Kanno, I., Yokokawa, R., Kotera, H., Shibata, K. and Mishima, T., Sensors and Actuators A 171, 223 (2011)
10. Saito, T., Adachi, H., Wada, T. and Adachi, H., Jpn. J. Appl. Phys. 44, 6969 (2005)
11. Egerton, L. and Dillon, D. M., J. Am. Ceram. Soc. 42, 438 (1959)



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