Suppressed Dependence of Polarization on Epitaxial Strain in Highly Polar Ferroelectrics

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Ho Nyung Lee,¹ Serge M. Nakhmanson,² Matthew F. Chisholm,¹ Hans M. Christen,¹ Karin M. Rabe,² and David Vanderbilt²
¹Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
²Department of Physics and Astronomy, Rutgers University, Piscataway, New Jersey 08854-8019, USA

See Also: Publisher's Note

Received 2 November 2006; published 21 May 2007; publisher error corrected 22 May 2007

Acombined experimental and computational investigation of coupling between polarization andepitaxial strain in highly polar ferroelectric PbZr_0.2Ti_0.8O₃ (PZT) thin filmsis reported. A comparison of the properties of relaxed (tetragonalityc/a [approximate] 1.05) and highly strained (c/a1.09) epitaxial films shows that polarization,while being amongst the highest reported for PZT or PbTiO₃in either film or bulk forms P_r82 µC/cm²), is almost independentof the epitaxial strain. We attribute this behavior to asuppressed sensitivity of the A-site cations to epitaxial strain inthese Pb-based perovskites, where the ferroelectric displacements are already large,contrary to the case of less polar perovskites, such asBaTiO₃. In the latter case, the A-site cation (Ba) andequatorial oxygen displacements can lead to substantial polarization increases.

URL:	http://link.aps.org/doi/10.1103/PhysRevLett.98.217602
DOI:	10.1103/PhysRevLett.98.217602
PACS:	77.22.Ej; 68.55.-a; 68.60.Bs; 77.84.Dy 77.22.Ej Dielectric polarization and depolarization 68.55.-a Thin film structure and morphology 68.60.Bs Mechanical and acoustical properties of thin films 77.84.Dy Dielectric, piezoelectric, and ferroelectric niobates, titanates, tantalates, PZT ceramics, etc YEAR: 2007

REFERENCES (25)

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J. B. Neaton and K. M. Rabe, Appl. Phys. Lett. 82, 1586 (2003).
S. M. Nakhmanson, K. M. Rabe, and D. Vanderbilt, Appl. Phys. Lett. 87, 102906 (2005);

Phys. Rev. B 73, 060101(R) (2006)

C. Ederer and N. A. Spaldin, Phys. Rev. B 71, 224103 (2005);

Phys. Rev. Lett. 95, 257601 (2005)

R. People and J. C. Bean, Appl. Phys. Lett. 47, 322 (1985).
A. Visinoiu, M. Alexe, H. N. Lee, D. N. Zakharov, A. Pignolet, D. Hesse, and U. Gösele, J. Appl. Phys. 91, 10157 (2002).
H. P. Sun, W. Tian, X. Q. Pan, J. H. Haeni, and D. G. Schlom, Appl. Phys. Lett. 84, 3298 (2004).
C. Lichtensteiger, J.-M. Triscone, J. Junquera, and P. Ghosez, Phys. Rev. Lett. 94, 047603 (2005);

Phys. Rev. Lett. 95, 237602 (2005)

H. N. Lee, H. M. Christen, M. F. Chisholm, C. M. Rouleau, and D. H. Lowndes, Appl. Phys. Lett. 84, 4107 (2004);

Phys. Rev. Lett. 95, 095501 (2005)

G. Kresse and J. Furthmüller, Phys. Rev. B 54, 11 169 (1996);

Phys. Rev. B 50, 17 953 (1994)

R. D. King-Smith and D. Vanderbilt, Phys. Rev. B 47, 1651 (1993);

Rev. Mod. Phys. 66, 899 (1994)

M. Ghita, M. Fornari, D. J. Singh, and S. V. Halilov, Phys. Rev. B 72, 054114 (2005).

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Erratum

Publisher's Note: Suppressed Dependence of Polarization on Epitaxial Strain in Highly Polar Ferroelectrics [Phys. Rev. Lett. 98, 217602 (2007)]
Ho Nyung Lee, Serge M. Nakhmanson, Matthew F. Chisholm et al.
Phys. Rev. Lett. 98, 229901 (E) (2007)