Dielectric Relaxation Phenomena in SBN Single Crystals Doped with Ce

• Authors: Yu. Korchak , V. Kapustianyk , B. Fedor , I. Girnyk , Yu. Eliyashevskyi
• Languages of publication: EN

Abstracts

EN

The dielectric study of Sr_{0.73}Ba_{0.27}Nb_2O_6:Ce (SBN) crystals along [010] crystallographic axis was performed in the temperature region of 310-360 K and frequency range from 25 Hz up to 1 MHz. The thermal dipole relaxation of quasi-Debye-type for this orientation of sample was observed in both investigated structural phases. The phase transition was most clearly seen from the temperature dependence of the relaxation time at T_{c} = 320 K. The relaxation processes were related to the collective oscillations of the Nb-O bonds in the two different type corner-sharing NbO_6 octahedra aligned along c-axis.

Keywords

EN

77.22.-d; 77.22.Ch; 77.22.Gm; 77.80.Jk

Discipline

• 77.22.Gm: Dielectric loss and relaxation
• 77.22.-d: Dielectric properties of solids and liquids(for dielectric properties of tissues and organs, see 87.19.rf)
• 77.80.Jk: Relaxor ferroelectrics
• 77.22.Ch: Permittivity (dielectric function)(for low-permittivity dielectric films, see 77.55.Bh; for high-permittivity gate dielectric films, 77.55.D-)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2011
• Volume: 119
• Issue: 6
• Pages: 871-874

Dates

published

2011-06

received

2010-09-24

(unknown)

2010-11-25

(unknown)

2011-02-25

Contributors

author

Yu. Korchak

• Ivan Franko National University of Lviv, 107 Tarnavskyi Str., L'viv, 79017, Ukraine

author

V. Kapustianyk

• Scientific-Technical and Educational Centre of Low-Temperature Studies, Ivan Franko National University of Lviv, 50 Dragomanov Str., Lviv, 79005, Ukraine

author

B. Fedor

• Hetman P. Sahaydachnyi Academy of the Army, 32 Gvardiyska Str., Lviv, 79012, Ukraine

author

I. Girnyk

• Scientific-Technical and Educational Centre of Low-Temperature Studies, Ivan Franko National University of Lviv, 50 Dragomanov Str., Lviv, 79005, Ukraine

author

Yu. Eliyashevskyi

• Scientific-Technical and Educational Centre of Low-Temperature Studies, Ivan Franko National University of Lviv, 50 Dragomanov Str., Lviv, 79005, Ukraine

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Identifiers

DOI

10.12693/APhysPolA.119.871