The double loop hysteresis in DC dependent dielectric permittivity of SrTiO3
Artikel i vetenskaplig tidskrift, 2002

Experimental double loop hysteresis in dc field dependent dielectric permittivity in bulk single crystal SrTiO3 is reported. Small signal measurements of the permittivity are performed in the frequency range 0.5-1.5 GHz at temperatures below 77 K using electrically thin circular parallel-plate resonators. The dielectric permittivity is extracted form the measured resonant frequency. The double loop hysteresis may be caused by field induced local paraelectric/ferroelectric phase transitions, and/or switching (polarization reversal) in local opposing ferroelectric domains associated with symmetry breaking impurities/structural defects.

Ferroelectric Switching

Permittivity

Dielectric Hysteresis

Ferroelectric Transitions

Ferroelectric Materials

Electric Domains

Strontium Compounds

Dielectric Resonance

Författare

Spartak Gevorgian

Institutionen för mikroelektronik och nanovetenskap

Anders Eriksson

Anatoli Deleniv

Journal of Applied Physics

0021-8979 (ISSN) 1089-7550 (eISSN)

Vol. 92 6165-6171

Ämneskategorier

Den kondenserade materiens fysik

DOI

10.1063/1.1516255