Details
| Original language | English |
|---|---|
| Pages (from-to) | 913-917 |
| Number of pages | 5 |
| Journal | Solid state communications |
| Volume | 97 |
| Issue number | 11 |
| Publication status | Published - Mar 1996 |
Abstract
The ac conductivity and dielectric function of KTiOPO4 were measured in the frequency range from 10 Hz to 10 MHz and in the temperature range from 290 to 1100 K, using Au evaporated contacts. Strong low frequency relaxation after field annealing experiments up to 600-1100K is observed, which can be attributed to surface segregation. Conclusively, by removal of the surface layers, intrinsic low frequency behavior is retained. The conductivity spectra indicate a power law behavior σ(ω)∼ωs with a quite small exponent s≃0.17. This dependence is possibly caused by the one dimensional character of AC conductivity.
Keywords
- A. ferroelectrics, A. surfaces and interfaces, D. dielectric response
ASJC Scopus subject areas
- Chemistry(all)
- Physics and Astronomy(all)
- Condensed Matter Physics
- Materials Science(all)
- Materials Chemistry
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
In: Solid state communications, Vol. 97, No. 11, 03.1996, p. 913-917.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Surface and intrinsic low frequency conductivity of KTiOPO4 (KTP) in the temperature range 290-1100 K
AU - Pimenov, A.
AU - Rüscher, C. H.
AU - Maslov, V. A.
N1 - Funding Information: KTP at temperature3s0 0-500K . This dependenccea nb e relatedw ith the high degreeo f onedimenaionalitoyf the charget ransportA. t highert emperaturewse observea n additionarle laxationd uet o thes urface-o n. It turns out thatp hosphoruiss releasefdr omt hec ry& Acknowiedgemen-tA . Pimenovg rate&& acknowiedges financial support from Deutscher Academischer AustaMMenst.
PY - 1996/3
Y1 - 1996/3
N2 - The ac conductivity and dielectric function of KTiOPO4 were measured in the frequency range from 10 Hz to 10 MHz and in the temperature range from 290 to 1100 K, using Au evaporated contacts. Strong low frequency relaxation after field annealing experiments up to 600-1100K is observed, which can be attributed to surface segregation. Conclusively, by removal of the surface layers, intrinsic low frequency behavior is retained. The conductivity spectra indicate a power law behavior σ(ω)∼ωs with a quite small exponent s≃0.17. This dependence is possibly caused by the one dimensional character of AC conductivity.
AB - The ac conductivity and dielectric function of KTiOPO4 were measured in the frequency range from 10 Hz to 10 MHz and in the temperature range from 290 to 1100 K, using Au evaporated contacts. Strong low frequency relaxation after field annealing experiments up to 600-1100K is observed, which can be attributed to surface segregation. Conclusively, by removal of the surface layers, intrinsic low frequency behavior is retained. The conductivity spectra indicate a power law behavior σ(ω)∼ωs with a quite small exponent s≃0.17. This dependence is possibly caused by the one dimensional character of AC conductivity.
KW - A. ferroelectrics
KW - A. surfaces and interfaces
KW - D. dielectric response
UR - http://www.scopus.com/inward/record.url?scp=0030105635&partnerID=8YFLogxK
U2 - 10.1016/0038-1098(95)00801-2
DO - 10.1016/0038-1098(95)00801-2
M3 - Article
AN - SCOPUS:0030105635
VL - 97
SP - 913
EP - 917
JO - Solid state communications
JF - Solid state communications
SN - 0038-1098
IS - 11
ER -