The magnetoelectric response of (PZT/LSMO) artificial multiferroic heterostructures as a function of temperature, electric, and magnetic field, shows that the largest magnetoelectric coupling is attained at temperatures near the magnetic critical point of LSMO, at . The magnetoelectric coupling displays a strong temperature dependence, changing sign at 150 K and saturating to positive values below . The magnetoelectric curve switches hysteretically between two states in response to the ferroelectric switching. The peak in the magnetoelectric response coincides with the observation of on/off switching of magnetism in LSMO near the critical region, where the sensitivity to electric field is largest, making it a promising approach for device applications.
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26 July 2010
Research Article|
July 29 2010
Temperature dependence of the magnetoelectric effect in multiferroic heterostructures Available to Purchase
C. A. F. Vaz;
C. A. F. Vaz
a)
Department of Applied Physics and CRISP,
Yale University
, New Haven, Connecticut 06520, USA
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Y. Segal;
Y. Segal
Department of Applied Physics and CRISP,
Yale University
, New Haven, Connecticut 06520, USA
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J. Hoffman;
J. Hoffman
Department of Applied Physics and CRISP,
Yale University
, New Haven, Connecticut 06520, USA
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R. D. Grober;
R. D. Grober
Department of Applied Physics and CRISP,
Yale University
, New Haven, Connecticut 06520, USA
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F. J. Walker;
F. J. Walker
Department of Applied Physics and CRISP,
Yale University
, New Haven, Connecticut 06520, USA
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C. H. Ahn
C. H. Ahn
Department of Applied Physics and CRISP,
Yale University
, New Haven, Connecticut 06520, USA
Search for other works by this author on:
C. A. F. Vaz
a)
Department of Applied Physics and CRISP,
Yale University
, New Haven, Connecticut 06520, USA
Y. Segal
Department of Applied Physics and CRISP,
Yale University
, New Haven, Connecticut 06520, USA
J. Hoffman
Department of Applied Physics and CRISP,
Yale University
, New Haven, Connecticut 06520, USA
R. D. Grober
Department of Applied Physics and CRISP,
Yale University
, New Haven, Connecticut 06520, USA
F. J. Walker
Department of Applied Physics and CRISP,
Yale University
, New Haven, Connecticut 06520, USA
C. H. Ahn
Department of Applied Physics and CRISP,
Yale University
, New Haven, Connecticut 06520, USA
a)
Electronic mail: [email protected].
Appl. Phys. Lett. 97, 042506 (2010)
Article history
Received:
June 01 2010
Accepted:
July 06 2010
Citation
C. A. F. Vaz, Y. Segal, J. Hoffman, R. D. Grober, F. J. Walker, C. H. Ahn; Temperature dependence of the magnetoelectric effect in multiferroic heterostructures. Appl. Phys. Lett. 26 July 2010; 97 (4): 042506. https://doi.org/10.1063/1.3472259
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