DOI: 10.1126/science.1218693. Mechanical Writing of Ferroelectric Polarization

Mechanical Writing of Ferroelectric Polarization

10.1126/science.1218693

Crossref journal-article

American Association for the Advancement of Science (AAAS)

Science (221)

Abstract

Changing Polarization with Applied Stress The direction of electric polarization in ferroelectric materials can be switched with an applied field, but mechanical stresses can also couple to the polarization, forming the basis for piezoelectric effects. In principle, it should be possible to change the polarization of a ferroelectric material mechanically through stress gradients. Lu et al. (p. 59 ; see the Perspective by Gregg ) demonstrate such switching for nanoscale-sized regions created by the stress induced with an atomic force microscope. The substrates are single-crystalline barium titanate films that have a vertically aligned dipole moment created by compressive stresses in the film. This approach may lead to memory devices in which bits are written mechanically but read electrically.

Bibliography

Lu, H., Bark, C.-W., Esque de los Ojos, D., Alcala, J., Eom, C. B., Catalan, G., & Gruverman, A. (2012). Mechanical Writing of Ferroelectric Polarization. Science, 336(6077), 59â61.

Authors 7

H. Lu (first)
C.-W. Bark (additional)
D. Esque de los Ojos (additional)
J. Alcala (additional)
C. B. Eom (additional)
G. Catalan (additional)
A. Gruverman (additional)

References 26 Referenced 721

10.1126/science.1103218
10.1103/PhysRevLett.96.127602
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10.1103/PhysRevLett.107.057602
10.1063/1.1593830
Kogan S. M., Piezoelectric effect during inhomogeneous deformation and acoustic scattering of carriers in crystals. Sov. Phys. Solid State 5, 2069 (1964). / Sov. Phys. Solid State / Piezoelectric effect during inhomogeneous deformation and acoustic scattering of carriers in crystals by Kogan S. M. (1964)
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Dates

Type	When
Created	13 years, 4 months ago (April 5, 2012, 2:15 p.m.)
Deposited	1 year, 7 months ago (Jan. 10, 2024, 10:39 a.m.)
Indexed	3 hours, 47 minutes ago (Aug. 24, 2025, 6:54 p.m.)
Issued	13 years, 4 months ago (April 6, 2012)
Published	13 years, 4 months ago (April 6, 2012)
Published Print	13 years, 4 months ago (April 6, 2012)

Funders 0

None

BibTeX

@article{Lu_2012, title={Mechanical Writing of Ferroelectric Polarization}, volume={336}, ISSN={1095-9203}, url={http://dx.doi.org/10.1126/science.1218693}, DOI={10.1126/science.1218693}, number={6077}, journal={Science}, publisher={American Association for the Advancement of Science (AAAS)}, author={Lu, H. and Bark, C.-W. and Esque de los Ojos, D. and Alcala, J. and Eom, C. B. and Catalan, G. and Gruverman, A.}, year={2012}, month=apr, pages={59–61} }

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  "abstract": "<jats:title>Changing Polarization with Applied Stress</jats:title>\n          <jats:p>\n            The direction of electric polarization in ferroelectric materials can be switched with an applied field, but mechanical stresses can also couple to the polarization, forming the basis for piezoelectric effects. In principle, it should be possible to change the polarization of a ferroelectric material mechanically through stress gradients.\n            <jats:bold>\n              Lu\n              <jats:italic>et al.</jats:italic>\n            </jats:bold>\n            (p.\n            <jats:related-article xmlns:xlink=\"http://www.w3.org/1999/xlink\" ext-link-type=\"doi\" page=\"59\" related-article-type=\"in-this-issue\" vol=\"336\" xlink:href=\"10.1126/science.1218693\">59</jats:related-article>\n            ; see the Perspective by\n            <jats:bold>\n              <jats:related-article xmlns:xlink=\"http://www.w3.org/1999/xlink\" ext-link-type=\"doi\" issue=\"6077\" page=\"41\" related-article-type=\"in-this-issue\" vol=\"336\" xlink:href=\"10.1126/science.1220827\">Gregg</jats:related-article>\n            </jats:bold>\n            ) demonstrate such switching for nanoscale-sized regions created by the stress induced with an atomic force microscope. The substrates are single-crystalline barium titanate films that have a vertically aligned dipole moment created by compressive stresses in the film. This approach may lead to memory devices in which bits are written mechanically but read electrically.\n          </jats:p>",
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