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

^*Šī darba korespondējošais autors

University of Aveiro

Zinātniskās darbības rezultāts: Devums žurnālam › Zinātniskais raksts (žurnālā) › koleģiāli recenzēts

100 Atsauces (Scopus)

Kopsavilkums

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.

Oriģinālvaloda	Angļu
Raksta numurs	172902
Lapas (no-līdz)	1-3
Lapu skaits	3
Žurnāls	Applied Physics Letters
Sējums	86
Izdevuma numurs	17
DOIs	https://doi.org/10.1063/1.1920414
Publikācijas statuss	Publicēts - 25 apr. 2005
Ārēji publicēts	Jā

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