skip to main content

DOE PAGESDOE PAGES

Title: Phase coexistence and electric-field control of toroidal order in oxide superlattices

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 PbTiO 3/SrTiO 3 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 a 1/a 2 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. Here, our findings suggest new cross-coupled functionalities.
Authors:
ORCiD logo [1] ;  [1] ;  [2] ;  [3] ; ORCiD logo [1] ;  [1] ;  [1] ;  [4] ;  [5] ; ORCiD logo [5] ; ORCiD logo [6] ;  [3] ;  [3] ;  [3] ;  [7] ;  [8] ;  [9] ; ORCiD logo [8] ;  [6] ;  [5] more »;  [2] ;  [3] ;  [1] ; ORCiD logo [1] « less
  1. Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  2. Pennsylvania State Univ., University Park, PA (United States)
  3. Argonne National Lab. (ANL), Argonne, IL (United States)
  4. Univ. of California, Berkeley, CA (United States)
  5. Univ. of Colorado, Boulder, CO (United States)
  6. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  7. Univ. del Pais Vasco, San Sebastian (Spain); Donostia International Physics Center, San Sebastian (Spain)
  8. Univ. de Cantabria, Santander (Spain)
  9. Luxembourg Institute of Science and Technology (LIST), Esch/Alzette (Luxembourg)
Publication Date:
Grant/Contract Number:
AC02-06CH11357
Type:
Accepted Manuscript
Journal Name:
Nature Materials
Additional Journal Information:
Journal Volume: 16; Journal Issue: 10; Journal ID: ISSN 1476-1122
Publisher:
Nature Publishing Group
Research Org:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22), Materials Sciences and Engineering Division; U.S. Army Research Laboratory, U.S. Army Research Office (ARO); National Science Foundation (NSF); Swiss National Science Foundation (SNSF); Spanish Ministerio de Economia y Competitividad (MINECO); Gordon and Betty Moore Foundation
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
OSTI Identifier:
1400404

Damodaran, A. R., Clarkson, J. D., Hong, Z., Liu, H., Yadav, A. K., Nelson, C. T., Hsu, S. -L., McCarter, M.  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., 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.  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. 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.  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.. 2017. "Phase coexistence and electric-field control of toroidal order in oxide superlattices". United States. doi: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.  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. Here, our findings suggest new cross-coupled functionalities.},
doi = {10.1038/NMAT4951},
journal = {Nature Materials},
number = 10,
volume = 16,
place = {United States},
year = {2017},
month = {8}
}

Works referenced in this record:

Metal-insulator transitions
journal, October 1998
  • Imada, Masatoshi; Fujimori, Atsushi; Tokura, Yoshinori
  • Reviews of Modern Physics, Vol. 70, Issue 4, p. 1039-1263
  • DOI: 10.1103/RevModPhys.70.1039

Spontaneous skyrmion ground states in magnetic metals
journal, August 2006
  • Rößler, U. K.; Bogdanov, A. N.; Pfleiderer, C.
  • Nature, Vol. 442, Issue 7104, p. 797-801
  • DOI: 10.1038/nature05056

Multiferroics progress and prospects in thin films
journal, January 2007
  • Ramesh, R.; Spaldin, Nicola A.
  • Nature Materials, Vol. 6, Issue 1, p. 21-29
  • DOI: 10.1038/nmat1805