Stabilization of monodomain polarization in ultrathin PbTiO3 films

D. D. Fong; A. M. Kolpak; J. A. Eastman; S. K. Streiffer; P. H. Fuoss; G. B. Stephenson; Carol Thompson; D. M. Kim; K. J. Choi; C. B. Eom; I. Grinberg; A. M. Rappe

doi:10.1103/PhysRevLett.96.127601

Stabilization of monodomain polarization in ultrathin PbTiO3 films

D. D. Fong, A. M. Kolpak, J. A. Eastman, S. K. Streiffer, P. H. Fuoss, G. B. Stephenson, Carol Thompson, D. M. Kim, K. J. Choi, C. B. Eom, I. Grinberg, A. M. Rappe

Research output: Contribution to journal › Article › peer-review

362 Scopus citations

Abstract

Using in situ high-resolution synchrotron x-ray scattering, the Curie temperature TC has been determined for ultrathin c-axis epitaxial PbTiO3 films on conducting substrates (SrRuO3 on SrTiO3), with surfaces exposed to a controlled vapor environment. The suppression of TC was relatively small, even for the thinnest film (1.2 nm). We observe that 180° stripe domains do not form, indicating that the depolarizing field is compensated by free charge at both interfaces. This is confirmed by ab initio calculations that find polar ground states in the presence of ionic adsorbates.

Original language	English
Article number	127601
Journal	Physical Review Letters
Volume	96
Issue number	12
DOIs	https://doi.org/10.1103/PhysRevLett.96.127601
State	Published - 2006
Externally published	Yes

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title = "Stabilization of monodomain polarization in ultrathin PbTiO3 films",

abstract = "Using in situ high-resolution synchrotron x-ray scattering, the Curie temperature TC has been determined for ultrathin c-axis epitaxial PbTiO3 films on conducting substrates (SrRuO3 on SrTiO3), with surfaces exposed to a controlled vapor environment. The suppression of TC was relatively small, even for the thinnest film (1.2 nm). We observe that 180° stripe domains do not form, indicating that the depolarizing field is compensated by free charge at both interfaces. This is confirmed by ab initio calculations that find polar ground states in the presence of ionic adsorbates.",

author = "Fong, {D. D.} and Kolpak, {A. M.} and Eastman, {J. A.} and Streiffer, {S. K.} and Fuoss, {P. H.} and Stephenson, {G. B.} and Carol Thompson and Kim, {D. M.} and Choi, {K. J.} and Eom, {C. B.} and I. Grinberg and Rappe, {A. M.}",

year = "2006",

doi = "10.1103/PhysRevLett.96.127601",

language = "English",

volume = "96",

journal = "Physical Review Letters",

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publisher = "American Physical Society",

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T1 - Stabilization of monodomain polarization in ultrathin PbTiO3 films

AU - Fong, D. D.

AU - Kolpak, A. M.

AU - Eastman, J. A.

AU - Streiffer, S. K.

AU - Fuoss, P. H.

AU - Stephenson, G. B.

AU - Thompson, Carol

AU - Kim, D. M.

AU - Choi, K. J.

AU - Eom, C. B.

AU - Grinberg, I.

AU - Rappe, A. M.

PY - 2006

Y1 - 2006

N2 - Using in situ high-resolution synchrotron x-ray scattering, the Curie temperature TC has been determined for ultrathin c-axis epitaxial PbTiO3 films on conducting substrates (SrRuO3 on SrTiO3), with surfaces exposed to a controlled vapor environment. The suppression of TC was relatively small, even for the thinnest film (1.2 nm). We observe that 180° stripe domains do not form, indicating that the depolarizing field is compensated by free charge at both interfaces. This is confirmed by ab initio calculations that find polar ground states in the presence of ionic adsorbates.

AB - Using in situ high-resolution synchrotron x-ray scattering, the Curie temperature TC has been determined for ultrathin c-axis epitaxial PbTiO3 films on conducting substrates (SrRuO3 on SrTiO3), with surfaces exposed to a controlled vapor environment. The suppression of TC was relatively small, even for the thinnest film (1.2 nm). We observe that 180° stripe domains do not form, indicating that the depolarizing field is compensated by free charge at both interfaces. This is confirmed by ab initio calculations that find polar ground states in the presence of ionic adsorbates.

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DO - 10.1103/PhysRevLett.96.127601

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VL - 96

JO - Physical Review Letters

JF - Physical Review Letters

IS - 12

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ER -

Stabilization of monodomain polarization in ultrathin PbTiO3 films

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