Surface and intrinsic low frequency conductivity of KTiOPO4 (KTP) in the temperature range 290-1100 K

Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review

Autoren

  • A. Pimenov
  • C. H. Rüscher
  • V. A. Maslov

Organisationseinheiten

Externe Organisationen

  • RAS - General Physics Institute
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Details

OriginalspracheEnglisch
Seiten (von - bis)913-917
Seitenumfang5
FachzeitschriftSolid state communications
Jahrgang97
Ausgabenummer11
PublikationsstatusVeröffentlicht - März 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.

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Surface and intrinsic low frequency conductivity of KTiOPO4 (KTP) in the temperature range 290-1100 K. / Pimenov, A.; Rüscher, C. H.; Maslov, V. A.
in: Solid state communications, Jahrgang 97, Nr. 11, 03.1996, S. 913-917.

Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review

Pimenov A, Rüscher CH, Maslov VA. Surface and intrinsic low frequency conductivity of KTiOPO4 (KTP) in the temperature range 290-1100 K. Solid state communications. 1996 Mär;97(11):913-917. doi: 10.1016/0038-1098(95)00801-2
Pimenov, A. ; Rüscher, C. H. ; Maslov, V. A. / Surface and intrinsic low frequency conductivity of KTiOPO4 (KTP) in the temperature range 290-1100 K. in: Solid state communications. 1996 ; Jahrgang 97, Nr. 11. S. 913-917.
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title = "Surface and intrinsic low frequency conductivity of KTiOPO4 (KTP) in the temperature range 290-1100 K",
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.",
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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.

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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

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