Polar behavior in Mn-doped SrTiO3 ceramics

A. Tkach; P. M. Vilarinho; A. L. Kholkin

doi:10.1063/1.1920414

Polar behavior in Mn-doped SrTiO₃ ceramics

A. Tkach^*
, P. M. Vilarinho
, A. L. Kholkin

^*Corresponding author for this work

University of Aveiro

Research output: Contribution to journal › Article › peer-review

100 Citations (Scopus)

Abstract

Polar behavior was found in Sr1-x Mnx TiO3 (x=0.005-0.02) ceramic system. Radio-frequency dielectric measurements showed a diffuse maximum at 25-65 K shifting to higher temperatures with increasing measurement frequency and amount of Mn. The observation of hysteretic behavior in the P versus E curves shows the existence of a polar state at low temperatures. The hysteresis response slowly degenerates into just nonlinearity as the temperature increases. The observed relaxor-type dielectric behavior is attributed to the formation of electric dipoles and corresponding random fields due to the off-center position of Mn2+ ion at the Sr site of highly polarizable SrTiO3 lattice.

Original language	English
Article number	172902
Pages (from-to)	1-3
Number of pages	3
Journal	Applied Physics Letters
Volume	86
Issue number	17
DOIs	https://doi.org/10.1063/1.1920414
Publication status	Published - 25 Apr 2005
Externally published	Yes

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10.1063/1.1920414

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abstract = "Polar behavior was found in Sr1-x Mnx TiO3 (x=0.005-0.02) ceramic system. Radio-frequency dielectric measurements showed a diffuse maximum at 25-65 K shifting to higher temperatures with increasing measurement frequency and amount of Mn. The observation of hysteretic behavior in the P versus E curves shows the existence of a polar state at low temperatures. The hysteresis response slowly degenerates into just nonlinearity as the temperature increases. The observed relaxor-type dielectric behavior is attributed to the formation of electric dipoles and corresponding random fields due to the off-center position of Mn2+ ion at the Sr site of highly polarizable SrTiO3 lattice.",

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AU - Vilarinho, P. M.

AU - Kholkin, A. L.

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N2 - Polar behavior was found in Sr1-x Mnx TiO3 (x=0.005-0.02) ceramic system. Radio-frequency dielectric measurements showed a diffuse maximum at 25-65 K shifting to higher temperatures with increasing measurement frequency and amount of Mn. The observation of hysteretic behavior in the P versus E curves shows the existence of a polar state at low temperatures. The hysteresis response slowly degenerates into just nonlinearity as the temperature increases. The observed relaxor-type dielectric behavior is attributed to the formation of electric dipoles and corresponding random fields due to the off-center position of Mn2+ ion at the Sr site of highly polarizable SrTiO3 lattice.

AB - Polar behavior was found in Sr1-x Mnx TiO3 (x=0.005-0.02) ceramic system. Radio-frequency dielectric measurements showed a diffuse maximum at 25-65 K shifting to higher temperatures with increasing measurement frequency and amount of Mn. The observation of hysteretic behavior in the P versus E curves shows the existence of a polar state at low temperatures. The hysteresis response slowly degenerates into just nonlinearity as the temperature increases. The observed relaxor-type dielectric behavior is attributed to the formation of electric dipoles and corresponding random fields due to the off-center position of Mn2+ ion at the Sr site of highly polarizable SrTiO3 lattice.

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DO - 10.1063/1.1920414

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JF - Applied Physics Letters

IS - 17

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ER -

Polar behavior in Mn-doped SrTiO₃ ceramics

Abstract

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