The mechanical stress-induced domain switching and energy dissipation in morphotropic phase boundary (1−x)(Bi1 − yLay)FeO3–xPbTiO3 during uniaxial compressive loading have been investigated at three different temperatures. The strain obtained was found to decrease with increasing lanthanum content, although a sharp increase in strain was observed for compositions doped with 7.5 and 10 at. % La. Increased domain switching was found in compositions with decreased tetragonality. This is discussed in terms of the competing influences of the amount of domain switching and the spontaneous strain on the macroscopic behavior under external fields. Comparison of the mechanically and electrically dissipated energy showed significant differences, discussed in terms of the different microscopic interactions of electric field and stress.
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1 March 2011
Research Article|
March 15 2011
Domain switching energies: Mechanical versus electrical loading in La-doped bismuth ferrite–lead titanate
T. Leist;
T. Leist
a)
1Institute of Materials Science,
Technische Universität Darmstadt
, 64287 Darmstadt, Germany
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K. G. Webber;
K. G. Webber
1Institute of Materials Science,
Technische Universität Darmstadt
, 64287 Darmstadt, Germany
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W. Jo;
W. Jo
1Institute of Materials Science,
Technische Universität Darmstadt
, 64287 Darmstadt, Germany
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T. Granzow;
T. Granzow
1Institute of Materials Science,
Technische Universität Darmstadt
, 64287 Darmstadt, Germany
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E. Aulbach;
E. Aulbach
1Institute of Materials Science,
Technische Universität Darmstadt
, 64287 Darmstadt, Germany
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J. Suffner;
J. Suffner
1Institute of Materials Science,
Technische Universität Darmstadt
, 64287 Darmstadt, Germany
2Institute of Nanotechnology,
Karlsruhe Institute of Technology
, P.O. 8430, D-76021 Karlsruhe, Germany
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J. Rödel
J. Rödel
1Institute of Materials Science,
Technische Universität Darmstadt
, 64287 Darmstadt, Germany
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T. Leist
1,a)
K. G. Webber
1
W. Jo
1
T. Granzow
1
E. Aulbach
1
J. Suffner
1,2
J. Rödel
1
1Institute of Materials Science,
Technische Universität Darmstadt
, 64287 Darmstadt, Germany
2Institute of Nanotechnology,
Karlsruhe Institute of Technology
, P.O. 8430, D-76021 Karlsruhe, Germany
a)
Author to whom correspondence should be addressed. Electronic mail: [email protected].
J. Appl. Phys. 109, 054109 (2011)
Article history
Received:
November 10 2010
Accepted:
January 15 2011
Citation
T. Leist, K. G. Webber, W. Jo, T. Granzow, E. Aulbach, J. Suffner, J. Rödel; Domain switching energies: Mechanical versus electrical loading in La-doped bismuth ferrite–lead titanate. J. Appl. Phys. 1 March 2011; 109 (5): 054109. https://doi.org/10.1063/1.3555599
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