Phase coexistence and electric-field control of toroidal order in oxide superlattices
Abstract
Systems that exhibit phase competition, order parameter coexistence, and emergent order parameter topologies constitute a major part of modern condensed-matter physics. Here, by applying a range of characterization techniques, and simulations, we observe that in PbTiO3/SrTiO3 superlattices all of these effects can be found. By exploring superlattice period-, temperature- and field-dependent evolution of these structures, we observe several new features. First, it is possible to engineer phase coexistence mediated by a first-order phase transition between an emergent, low-temperature vortex phase with electric toroidal order and a high-temperature ferroelectric a1/a2 phase. At room temperature, the coexisting vortex and ferroelectric phases form a mesoscale, fibre-textured hierarchical superstructure. The vortex phase possesses an axial polarization, set by the net polarization of the surrounding ferroelectric domains, such that it possesses a multi-order-parameter state and belongs to a class of gyrotropic electrotoroidal compounds. Finally, application of electric fields to this mixed-phase system permits interconversion between the vortex and the ferroelectric phases concomitant with order-of-magnitude changes in piezoelectric and nonlinear optical responses. Our findings suggest new cross-coupled functionalities.
- Authors:
-
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- Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Pennsylvania State Univ., University Park, PA (United States)
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Univ. of California, Berkeley, CA (United States)
- Univ. of Colorado, Boulder, CO (United States)
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Univ. del Pais Vasco, San Sebastian (Spain); Donostia International Physics Center, San Sebastian (Spain)
- Univ. de Cantabria, Santander (Spain)
- Luxembourg Institute of Science and Technology (LIST), Esch/Alzette (Luxembourg)
- Publication Date:
- Research Org.:
- Argonne National Laboratory (ANL), Argonne, IL (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division; U.S. Army Research Office (ARO); National Science Foundation (NSF); Swiss National Science Foundation (SNSF); Spanish Ministerio de Economia y Competitividad (MINECO); Luxembourg National Research Fund; Gordon and Betty Moore Foundation
- OSTI Identifier:
- 1400404
- Alternate Identifier(s):
- OSTI ID: 1637274
- Grant/Contract Number:
- AC02-06CH11357; SC0012375; AC02-05CH11231; SC0008807; FG02-07ER46417; W911NF-14-1-0104; DMR-1420620; DMR-1210588; DGE-1106400; FIS2015-64886-C5-2-P; FNR/C15/MS/10458889-NEWALLS; GBMF5307
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nature Materials
- Additional Journal Information:
- Journal Volume: 16; Journal Issue: 10; Journal ID: ISSN 1476-1122
- Publisher:
- Springer Nature - Nature Publishing Group
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Citation Formats
Damodaran, A. R., Clarkson, J. D., Hong, Z., Liu, H., Yadav, A. K., Nelson, C. T., Hsu, S. -L., McCarter, M. Â R., Park, K. -D., Kravtsov, V., Farhan, A., Dong, Y., Cai, Z., Zhou, H., Aguado-Puente, P., Garcia-Fernandez, P., Iniguez, J., Junquera, J., Scholl, A., Raschke, M. B., Chen, L. -Q., Fong, D. D., Ramesh, R., and Martin, L. W. Phase coexistence and electric-field control of toroidal order in oxide superlattices. United States: N. p., 2017.
Web. doi:10.1038/NMAT4951.
Damodaran, A. R., Clarkson, J. D., Hong, Z., Liu, H., Yadav, A. K., Nelson, C. T., Hsu, S. -L., McCarter, M. Â R., Park, K. -D., Kravtsov, V., Farhan, A., Dong, Y., Cai, Z., Zhou, H., Aguado-Puente, P., Garcia-Fernandez, P., Iniguez, J., Junquera, J., Scholl, A., Raschke, M. B., Chen, L. -Q., Fong, D. D., Ramesh, R., & Martin, L. W. Phase coexistence and electric-field control of toroidal order in oxide superlattices. United States. https://doi.org/10.1038/NMAT4951
Damodaran, A. R., Clarkson, J. D., Hong, Z., Liu, H., Yadav, A. K., Nelson, C. T., Hsu, S. -L., McCarter, M. Â R., Park, K. -D., Kravtsov, V., Farhan, A., Dong, Y., Cai, Z., Zhou, H., Aguado-Puente, P., Garcia-Fernandez, P., Iniguez, J., Junquera, J., Scholl, A., Raschke, M. B., Chen, L. -Q., Fong, D. D., Ramesh, R., and Martin, L. W. Mon .
"Phase coexistence and electric-field control of toroidal order in oxide superlattices". United States. https://doi.org/10.1038/NMAT4951. https://www.osti.gov/servlets/purl/1400404.
@article{osti_1400404,
title = {Phase coexistence and electric-field control of toroidal order in oxide superlattices},
author = {Damodaran, A. R. and Clarkson, J. D. and Hong, Z. and Liu, H. and Yadav, A. K. and Nelson, C. T. and Hsu, S. -L. and McCarter, M. Â R. and Park, K. -D. and Kravtsov, V. and Farhan, A. and Dong, Y. and Cai, Z. and Zhou, H. and Aguado-Puente, P. and Garcia-Fernandez, P. and Iniguez, J. and Junquera, J. and Scholl, A. and Raschke, M. B. and Chen, L. -Q. and Fong, D. D. and Ramesh, R. and Martin, L. W.},
abstractNote = {Systems that exhibit phase competition, order parameter coexistence, and emergent order parameter topologies constitute a major part of modern condensed-matter physics. Here, by applying a range of characterization techniques, and simulations, we observe that in PbTiO3/SrTiO3 superlattices all of these effects can be found. By exploring superlattice period-, temperature- and field-dependent evolution of these structures, we observe several new features. First, it is possible to engineer phase coexistence mediated by a first-order phase transition between an emergent, low-temperature vortex phase with electric toroidal order and a high-temperature ferroelectric a1/a2 phase. At room temperature, the coexisting vortex and ferroelectric phases form a mesoscale, fibre-textured hierarchical superstructure. The vortex phase possesses an axial polarization, set by the net polarization of the surrounding ferroelectric domains, such that it possesses a multi-order-parameter state and belongs to a class of gyrotropic electrotoroidal compounds. Finally, application of electric fields to this mixed-phase system permits interconversion between the vortex and the ferroelectric phases concomitant with order-of-magnitude changes in piezoelectric and nonlinear optical responses. Our findings suggest new cross-coupled functionalities.},
doi = {10.1038/NMAT4951},
journal = {Nature Materials},
number = 10,
volume = 16,
place = {United States},
year = {Mon Aug 07 00:00:00 EDT 2017},
month = {Mon Aug 07 00:00:00 EDT 2017}
}
Web of Science
Figures / Tables:
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