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Title: Field-dependent magnetization of BiFeO3 in ultrathin La0.7Sr0.3MnO3/BiFeO3 superlattice

Abstract

Here, we report the observation of field-dependent magnetization of BiFeO3 (BFO) in an ultrathin BFO/La0.7Sr0.3MnO3 (LSMO) superlattice using polarized neutron reflectivity (PNR). Our PNR results indicate parallel alignment of magnetization across BFO/LSMO interfaces. The study showed an increase in average magnetization of the BFO layer on increasing applied magnetic field at 10 K, similar to the ferromagnetic nature of LSMO. We obtained a saturation magnetization of 110 ± 15kA/m(~0.8μB/Fe) for an ultrathin BFO layer (~2 unit cells) sandwiched between ultrathin LSMO layers (~2 unit cells), which is much higher than the canted moment (0.03μB/Fe) in the bulk BFO.

Authors:
 [1];  [2];  [3];  [2];  [2]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  3. Bhabha Atomic Research Centre, Mumbai (India)
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1235821
Alternate Identifier(s):
OSTI ID: 1227752; OSTI ID: 1321773; OSTI ID: 1332075
Report Number(s):
LA-UR-15-29159
Journal ID: ISSN 1098-0121; PRBMDO
Grant/Contract Number:  
AC05-00OR22725; AC52-06NA25396
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review. B, Condensed Matter and Materials Physics
Additional Journal Information:
Journal Volume: 92; Journal Issue: 22; Journal ID: ISSN 1098-0121
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; interface magnetic moment; multiferroic and complex oxide hetrostructures; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; material science; thin films, neutron diffraction, multiferroics

Citation Formats

Fitzsimmons, Michael R., Jia, Quanxi X., Singh, Surendra, Chen, A. P., and Xiong, J. Field-dependent magnetization of BiFeO3 in ultrathin La0.7Sr0.3MnO3/BiFeO3 superlattice. United States: N. p., 2015. Web. doi:10.1103/PhysRevB.92.224405.
Fitzsimmons, Michael R., Jia, Quanxi X., Singh, Surendra, Chen, A. P., & Xiong, J. Field-dependent magnetization of BiFeO3 in ultrathin La0.7Sr0.3MnO3/BiFeO3 superlattice. United States. https://doi.org/10.1103/PhysRevB.92.224405
Fitzsimmons, Michael R., Jia, Quanxi X., Singh, Surendra, Chen, A. P., and Xiong, J. 2015. "Field-dependent magnetization of BiFeO3 in ultrathin La0.7Sr0.3MnO3/BiFeO3 superlattice". United States. https://doi.org/10.1103/PhysRevB.92.224405. https://www.osti.gov/servlets/purl/1235821.
@article{osti_1235821,
title = {Field-dependent magnetization of BiFeO3 in ultrathin La0.7Sr0.3MnO3/BiFeO3 superlattice},
author = {Fitzsimmons, Michael R. and Jia, Quanxi X. and Singh, Surendra and Chen, A. P. and Xiong, J.},
abstractNote = {Here, we report the observation of field-dependent magnetization of BiFeO3 (BFO) in an ultrathin BFO/La0.7Sr0.3MnO3 (LSMO) superlattice using polarized neutron reflectivity (PNR). Our PNR results indicate parallel alignment of magnetization across BFO/LSMO interfaces. The study showed an increase in average magnetization of the BFO layer on increasing applied magnetic field at 10 K, similar to the ferromagnetic nature of LSMO. We obtained a saturation magnetization of 110 ± 15kA/m(~0.8μB/Fe) for an ultrathin BFO layer (~2 unit cells) sandwiched between ultrathin LSMO layers (~2 unit cells), which is much higher than the canted moment (0.03μB/Fe) in the bulk BFO.},
doi = {10.1103/PhysRevB.92.224405},
url = {https://www.osti.gov/biblio/1235821}, journal = {Physical Review. B, Condensed Matter and Materials Physics},
issn = {1098-0121},
number = 22,
volume = 92,
place = {United States},
year = {Wed Dec 02 00:00:00 EST 2015},
month = {Wed Dec 02 00:00:00 EST 2015}
}

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Cited by: 13 works
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Works referenced in this record:

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Works referencing / citing this record:

Strain Enhanced Functionality in a Bottom‐Up Approach Enabled 3D Super‐Nanocomposites
journal, March 2019


Spatially Resolved Large Magnetization in Ultrathin BiFeO 3
journal, June 2017


Charge-Transfer-Induced Interfacial Exchange Coupling at the Co / Bi Fe O 3 Interface
journal, October 2019