Abstract
The surface morphology of (0 0 1) Bi4Ti3O12 grown on (0 0 1) SrTiO3 by reactive molecular beam epitaxy (MBE) has been examined using atomic force microscopy (AFM). Initial nucleation of a 1/4 unit cell thick layer is followed by growth of 1/2 unit cell thick layers. Between 9 and 16 layers, a transition to 3-dimensional growth occurs, leading to well-defined mounds. This implies a Stranski-Krastonov growth mode. During growth, the morphology follows a behavior consistent with the dynamic scaling hypothesis and we extract values for the scaling exponents α and β from the AFM data. A thickness variation in α is observed and reflects the strain relief associated with the Stranski-Krastonov growth.
Similar content being viewed by others
References
B. Aurivillius, Arkiv Kemi, 1, 463 (1949); B. Aurivillius and P.H. Fang, Phys. Rev., 126, 893 (1962).
S.-Y. Wu, IEEE Trans. Electron Devices, ED-21, 499 (1974).
S.-Y. Wu, W.J. Takei, and M.H. Francombe, Ferroelectrics, 10, 209 (1976).
R. Ramesh, K. Luther, B. Wilkens, D.L. Hart, E. Wang, J.M. Tarascon, A. Inam, X.D. Wu, and T. Venkatesan, Appl. Phys. Lett., 57, 1505 (1990).
Bi4Ti3O12 is monoclinic with space group B1a1 as shown by A.D. Rae, J.G. Thompson, R.L. Withers, and A.C. Willis, Acta Cryst., B46, 474 (1990).
Landolt-Bornstein: Numerical Data and Functional Relationships in Science and Technology New Series, Group III, Vol 16a, edited by K.-H. Hellwege and A.M. Hellwege (Springer-Verlag, Berlin, 1981), pp. 59, 237.
C.D. Theis, J. Yeh, D.G. Schlom, M.E. Hawley, G.W. Brown, J.C. Jiang, and X.Q. Pan, Appl. Phys. Lett., 72, 2817 (1998).
Z. Zhang and M.G. Lagally, Science, 276, 377 (1997).
X.-Y. Zheng, D.H. Lowndes, S. Zhu, J.D. Budai, and R.J. Warmack, Phys. Rev. B, 45, 7584 (1992).
V. Dediu, et.al., Phys. Rev. B, 54, 1564 (1996).
D.W. Pashley, Mater. Res. Soc. Symp. Proc., 37, 67 (1985).
C.W. Snyder, B.G. Orr, D. Kessler, and L.M. Sander, Phys. Rev. Lett., 66, 3032 (1991).
F. Family and T. Vicsek, J. Phys. A: Math. Gen., 18, L75 (1985).
J. Lapujoulade, Surf. Sci. Rep. 20, 191 (1994).
Y.-L. He, H.-N. Yang, T.-M. Lu, and G.-C. Wang, Phys. Rev. Lett., 69, 3770 (1992); Y.-B. Park, S.-W. Rhee, and J.-H. Hong, J. Vac. Sci. Technol. B, 15, 1995 (1997).
Digital Instruments, Santa Barbara, California, USA.
M. Kawasaki, K. Takahashi, T. Maeda, R. Tsuchiya, M. Shinohara, O. Ishiyama, T. Yonezawa, M. Yoshimoto, and H. Koinuma, Science, 266, 1540 (1994).
M.W. Mitchell and D.A. Bonnell, J. Mater. Res., 5, 2244 (1990); J.M. Gomez-Rodriguez, A.M. Baro, and R.C. Salvarezza, J. Vac. Sci. Technol. B, 9, 495 (1993); J. Krim, I. Heyvaert, C. Van Haesendonck, and Y. Bruynseraede, Phys. Rev. Lett., 70, 57 (1993).
N.-E. Lee, D.G. Cahill, and J.E. Greene, J. Appl. Phys., 80, 2199 (1996).
B.W. Karr, I. Petrov, D.G. Cahill, and J.E. Greene, Appl. Phys. Lett., 70, 1703 (1997).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Brown, G., Hawley, M., Theis, C. et al. Atomic Force Microscopy Examination of the Evolution of the Surface Morphology of Bi4Ti3O12 grown by Molecular Beam Epitaxy. Journal of Electroceramics 4, 351–356 (2000). https://doi.org/10.1023/A:1009918711349
Issue Date:
DOI: https://doi.org/10.1023/A:1009918711349