Electric field dependent microwave losses in KTaO3 single crystal with YBa2CU3O7-x electrodes
Artikel i vetenskaplig tidskrift, 1999

We have measured the voltage dependence of the resonant frequency and the microwave losses for parallel-plate resonators based on single crystals KTaO3, with YBa2Cu3O7-x electrodes. The losses increase and the dielectric constant decrease monotonically with applied voltage. Both the dielectric constant and the losses show a hysteretic effect in the voltage dependence. The hysteretic effects may be explained by electric field assisted charge trapping both in the KTaO3, crystal and at the KTaO3/YBa2Cu3O7-x interfaces


Erik F. Carlsson

Institutionen för mikrovågsteknik

E. Wikborg

Institutionen för fysik

Spartak Gevorgian

Institutionen för mikroelektronik och nanovetenskap

Ferroelectrics, Letters Section

0731-5171 (ISSN) 1563-5228 (eISSN)

Vol. 25 5-6 141-152


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