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Title: Synthetic magnetoelectric coupling in a nanocomposite multiferroic

Journal Article · · Scientific Reports
DOI:https://doi.org/10.1038/srep09089· OSTI ID:1190438
 [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)

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. Finally, 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.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Spallation Neutron Source (SNS)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1190438
Alternate ID(s):
OSTI ID: 1265330
Journal Information:
Scientific Reports, Vol. 5; ISSN 2045-2322
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 22 works
Citation information provided by
Web of Science

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Cited By (6)

Two state coercivity driven by phase coexistence in vanadium sesquioxide/nickel bulk hybrid material journal September 2016
Phase separation enhanced magneto-electric coupling in La0.7Ca0.3MnO3/BaTiO3 ultra-thin films journal December 2015
Spatially Resolved Large Magnetization in Ultrathin BiFeO 3 journal June 2017
Switchable electric polarization and ferroelectric domains in a metal-organic-framework journal September 2016
Power absorption in acoustically driven ferromagnetic resonance journal January 2016
Electric field induced reversible 180° magnetization switching through tuning of interfacial exchange bias along magnetic easy-axis in multiferroic laminates journal November 2015