TY  - JOUR
AU  - Peter, F.
AU  - Kubacki, J.
AU  - Szot, K.
AU  - Reichenberg, B.
AU  - Waser, R.
TI  - Influence of adsorbates on the piezoresponse of KnBO3
JO  - Physica status solidi / A
VL  - 203
SN  - 0031-8965
CY  - Weinheim
PB  - Wiley-VCH
M1  - PreJuSER-50460
SP  - 616 - 621
PY  - 2006
N1  - Record converted from VDB: 12.11.2012
AB  - We report on the reduction of piezoresponse in KNbO3 originating from a surface layer. An analysis with surface sensitive measurements shows that this layer consists of chemisorbates and physisorbates. Heating the sample under ultra high vacuum conditions removes the surface layer on the perovskite to a large extend. This treatment has a drastic effect on the piezoresponse as the potential difference applied to the sample is no longer reduced by a voltage drop across the adsorbate layer, leading to a higher electric field compared to the case with an adsorbate layer. Experiments and simulations are presented confirming this postulation on KNbO3.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000235813600024
DO  - DOI:10.1002/pssa.200521366
UR  - https://juser.fz-juelich.de/record/50460
ER  -