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Title: Synthetic magnetoelectric coupling in a nanocomposite multiferroic

Abstract

Given the paucity of single phase multiferroic materials (with large ferromagnetic moment), composite systems seem an attractive solution to realize magnetoelectric coupling between ferromagnetic and ferroelectric order parameters. Despite having antiferromagnetic order, BiFeO₃ (BFO) has nevertheless been a key material due to excellent ferroelectric properties at room temperature. We studied a superlattice composed of 8 repetitions of 6 unit cells of La₀.₇Sr₀.₃MnO₃ (LSMO) grown on 5 unit cells of BFO. Significant net uncompensated magnetization in BFO, an insulating superlattice, is demonstrated using polarized neutron reflectometry. Remarkably, the magnetization enables magnetic field to change the dielectric properties of the superlattice, which we cite as an example of synthetic magnetoelectric coupling. Importantly, controlled creation of magnetic moment in BFO is a much needed path toward design and implementation of integrated oxide devices for next generation magnetoelectric data storage platforms.

Authors:
 [1];  [1];  [2];  [3];  [3];  [4];  [1];  [1];  [1];  [5];  [1];  [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Universidad Complutense de Madrid, Madrid (Spain)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  4. Univ. of California at San Diego, La Jolla, CA (United States)
  5. Universidad Complutense de Madrid, Madrid (Spain); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Spallation Neutron Source (SNS)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1190438
Alternate Identifier(s):
OSTI ID: 1265330
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Volume: 5; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; 36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; thin films; oxides; magnetism; polarized neutron reflectometry; multiferroics; magnetoelectrics

Citation Formats

Jain, P., Wang, Q., Roldan, M., Glavic, A., Lauter, V., Urban, C., Bi, Z., Ahmed, T., Zhu, J., Varela, M., Jia, Q. X., and Fitzsimmons, M. R. Synthetic magnetoelectric coupling in a nanocomposite multiferroic. United States: N. p., 2015. Web. doi:10.1038/srep09089.
Jain, P., Wang, Q., Roldan, M., Glavic, A., Lauter, V., Urban, C., Bi, Z., Ahmed, T., Zhu, J., Varela, M., Jia, Q. X., & Fitzsimmons, M. R. Synthetic magnetoelectric coupling in a nanocomposite multiferroic. United States. doi:10.1038/srep09089.
Jain, P., Wang, Q., Roldan, M., Glavic, A., Lauter, V., Urban, C., Bi, Z., Ahmed, T., Zhu, J., Varela, M., Jia, Q. X., and Fitzsimmons, M. R. Fri . "Synthetic magnetoelectric coupling in a nanocomposite multiferroic". United States. doi:10.1038/srep09089. https://www.osti.gov/servlets/purl/1190438.
@article{osti_1190438,
title = {Synthetic magnetoelectric coupling in a nanocomposite multiferroic},
author = {Jain, P. and Wang, Q. and Roldan, M. and Glavic, A. and Lauter, V. and Urban, C. and Bi, Z. and Ahmed, T. and Zhu, J. and Varela, M. and Jia, Q. X. and Fitzsimmons, M. R.},
abstractNote = {Given the paucity of single phase multiferroic materials (with large ferromagnetic moment), composite systems seem an attractive solution to realize magnetoelectric coupling between ferromagnetic and ferroelectric order parameters. Despite having antiferromagnetic order, BiFeO₃ (BFO) has nevertheless been a key material due to excellent ferroelectric properties at room temperature. We studied a superlattice composed of 8 repetitions of 6 unit cells of La₀.₇Sr₀.₃MnO₃ (LSMO) grown on 5 unit cells of BFO. Significant net uncompensated magnetization in BFO, an insulating superlattice, is demonstrated using polarized neutron reflectometry. Remarkably, the magnetization enables magnetic field to change the dielectric properties of the superlattice, which we cite as an example of synthetic magnetoelectric coupling. Importantly, controlled creation of magnetic moment in BFO is a much needed path toward design and implementation of integrated oxide devices for next generation magnetoelectric data storage platforms.},
doi = {10.1038/srep09089},
journal = {Scientific Reports},
number = ,
volume = 5,
place = {United States},
year = {Fri Mar 13 00:00:00 EDT 2015},
month = {Fri Mar 13 00:00:00 EDT 2015}
}

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Works referenced in this record:

Epitaxial BiFeO3 Multiferroic Thin Film Heterostructures
journal, March 2003