BaSnxTi1−xO3 solid solutions with compositions in the range x = 0–0.20 were studied by combining analysis of the field-induced dielectric and ferroelectric properties with Raman spectroscopic investigations. By combining techniques, the detection of specific features related to the ferroelectric-to-relaxor crossover with increasing Sn content is possible. Detailed tunability analysis of the x = 0.05 composition indicated that multiple components contribute to the dc-field induced permittivity response; these components are active in different temperature and field ranges and could be assigned to a few polarization mechanisms. First order reversal curves (FORC) for the material clearly show a transition from ferroelectric-to-relaxor behavior with increasing x, confirming the conclusions from the Raman and dielectric studies. This was evidenced by the shift of the FORC distribution over coercivities toward zero field values. Raman measurements allow the identification of the separate phases with varying Sn content and temperature, indicating large regions of phase coexistence. The composition x = 0.20 is in a predominantly relaxor state. This is ascribed to a large range of phase coexistence and to the presence of polar nanoregions promoted by Sn substitution on the B site of the perovskite unit cell ABO3.
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15 April 2012
Research Article|
April 18 2012
High-field dielectric properties and Raman spectroscopic investigation of the ferroelectric-to-relaxor crossover in BaSnxTi1−xO3 ceramics
Marco Deluca;
Marco Deluca
a)
1
Institut für Struktur-und Funktionskeramik
, Montanuniversitaet Leoben, Peter Tunner Str. 5, 8700 Leoben, Austria
2
Materials Center Leoben Forschung GmbH
, Roseggerstr. 12, 8700 Leoben, Austria
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Laurentiu Stoleriu;
Laurentiu Stoleriu
3Department of Physics,
“Al. I. Cuza” University
, Bv. Carol I no. 11, Iasi 700506, Romania
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Lavinia Petronela Curecheriu;
Lavinia Petronela Curecheriu
3Department of Physics,
“Al. I. Cuza” University
, Bv. Carol I no. 11, Iasi 700506, Romania
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Nadejda Horchidan;
Nadejda Horchidan
3Department of Physics,
“Al. I. Cuza” University
, Bv. Carol I no. 11, Iasi 700506, Romania
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Adelina Carmen Ianculescu;
Adelina Carmen Ianculescu
4Department of Oxide Materials Science and Engineering,
Polytechnics University
, 1-7 Gh. Polizu, P.O. Box 12-134, 011061 Bucharest, Romania
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Carmen Galassi;
Carmen Galassi
5
Institute of Science and Technology for Ceramics ISTEC-CNR
, Via Granarolo 64, I-48018 Faenza, Italy
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Liliana Mitoseriu
Liliana Mitoseriu
a)
3Department of Physics,
“Al. I. Cuza” University
, Bv. Carol I no. 11, Iasi 700506, Romania
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Marco Deluca
1,2,a)
Laurentiu Stoleriu
3
Lavinia Petronela Curecheriu
3
Nadejda Horchidan
3
Adelina Carmen Ianculescu
4
Carmen Galassi
5
Liliana Mitoseriu
3,a)
1
Institut für Struktur-und Funktionskeramik
, Montanuniversitaet Leoben, Peter Tunner Str. 5, 8700 Leoben, Austria
2
Materials Center Leoben Forschung GmbH
, Roseggerstr. 12, 8700 Leoben, Austria
3Department of Physics,
“Al. I. Cuza” University
, Bv. Carol I no. 11, Iasi 700506, Romania
4Department of Oxide Materials Science and Engineering,
Polytechnics University
, 1-7 Gh. Polizu, P.O. Box 12-134, 011061 Bucharest, Romania
5
Institute of Science and Technology for Ceramics ISTEC-CNR
, Via Granarolo 64, I-48018 Faenza, Italy
a)
Authors to whom correspondence should be addressed. Electronic addresses: [email protected] and [email protected].
J. Appl. Phys. 111, 084102 (2012)
Article history
Received:
January 04 2012
Accepted:
March 10 2012
Citation
Marco Deluca, Laurentiu Stoleriu, Lavinia Petronela Curecheriu, Nadejda Horchidan, Adelina Carmen Ianculescu, Carmen Galassi, Liliana Mitoseriu; High-field dielectric properties and Raman spectroscopic investigation of the ferroelectric-to-relaxor crossover in BaSnxTi1−xO3 ceramics. J. Appl. Phys. 15 April 2012; 111 (8): 084102. https://doi.org/10.1063/1.3703672
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