TY  - JOUR
AU  - Hölbling, T.
AU  - Söylemezoglu, N.
AU  - Waser, R.
TI  - A mathematical-physical model for the charge transport in p-type SrTiO3 ceramics under dc load: Maxwell-Wagner Relaxation
JO  - Journal of electroceramics
VL  - 9
SN  - 1385-3449
CY  - Dordrecht [u.a.]
PB  - Springer Science + Business Media B.V
M1  - PreJuSER-31697
SP  - 87 - 100
PY  - 2002
N1  - Record converted from VDB: 12.11.2012
AB  - A mathematical-physical model to describe the current response of p-type SrTiO3 ceramics in the low-temperature regime upon dc voltage step was developed, utilizing the numerical class library DIFFPACK(TM) (Numerical Objects, Norway). The current response in the time domain shows the experimentally observed Maxwell-Wagner relaxation (space charge polarization), followed by leakage current, and, eventually, resistance degradation. The relaxation behavior is analyzed by means of the simulation results for the spatial profiles of the electrical potential and the respective point defects. The impact of bias voltage and grain boundaries on the relaxation time is investigated. The simulation results are compared with experimental data.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000180947500001
UR  - https://juser.fz-juelich.de/record/31697
ER  -