Incommensurate phase properties of TlGaSe2 layered crystals

E. Şentürk; L. Tümbek; F. Salehli; F. A. Mikailov

doi:10.1002/crat.200410333

Incommensurate phase properties of TlGaSe₂ layered crystals

E. Şentürk^*, L. Tümbek, F. Salehli, F. A. Mikailov

^*Corresponding author for this work

Faculty of Science and Letters

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

The frequency and time dependence of the ac conductivity were measured within incommensurate phase in the frequency range 10¹-10⁷ Hz and analyzed. The electrical conductivity decreases with decreasing temperature, then saturates in mentioned temperature interval. The ac conductivity is proportional to w^s. The value f s decreases with increasing temperature which suggests hopping conduction mechanism. The time dependence of the conductivity exhibited exponential decay. It shows two conductivity relaxations in mentioned temperature interval. Moreover, the characteristic relaxation times decrease with decreasing annealing temperature. The two different relaxation times refer to two different incommensurate ordering in mentioned temperature interval.

Original language	English
Pages (from-to)	248-252
Number of pages	5
Journal	Crystal Research and Technology
Volume	40
Issue number	3
DOIs	https://doi.org/10.1002/crat.200410333
Publication status	Published - Mar 2005

Keywords

Conductivity
Layered crystals
Phase transition
Relaxation

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10.1002/crat.200410333

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title = "Incommensurate phase properties of TlGaSe2 layered crystals",

abstract = "The frequency and time dependence of the ac conductivity were measured within incommensurate phase in the frequency range 101-107 Hz and analyzed. The electrical conductivity decreases with decreasing temperature, then saturates in mentioned temperature interval. The ac conductivity is proportional to ws. The value f s decreases with increasing temperature which suggests hopping conduction mechanism. The time dependence of the conductivity exhibited exponential decay. It shows two conductivity relaxations in mentioned temperature interval. Moreover, the characteristic relaxation times decrease with decreasing annealing temperature. The two different relaxation times refer to two different incommensurate ordering in mentioned temperature interval.",

keywords = "Conductivity, Layered crystals, Phase transition, Relaxation",

author = "E. {\c S}ent{\"u}rk and L. T{\"u}mbek and F. Salehli and Mikailov, {F. A.}",

year = "2005",

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doi = "10.1002/crat.200410333",

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journal = "Crystal Research and Technology",

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TY - JOUR

T1 - Incommensurate phase properties of TlGaSe2 layered crystals

AU - Şentürk, E.

AU - Tümbek, L.

AU - Salehli, F.

AU - Mikailov, F. A.

PY - 2005/3

Y1 - 2005/3

N2 - The frequency and time dependence of the ac conductivity were measured within incommensurate phase in the frequency range 101-107 Hz and analyzed. The electrical conductivity decreases with decreasing temperature, then saturates in mentioned temperature interval. The ac conductivity is proportional to ws. The value f s decreases with increasing temperature which suggests hopping conduction mechanism. The time dependence of the conductivity exhibited exponential decay. It shows two conductivity relaxations in mentioned temperature interval. Moreover, the characteristic relaxation times decrease with decreasing annealing temperature. The two different relaxation times refer to two different incommensurate ordering in mentioned temperature interval.

AB - The frequency and time dependence of the ac conductivity were measured within incommensurate phase in the frequency range 101-107 Hz and analyzed. The electrical conductivity decreases with decreasing temperature, then saturates in mentioned temperature interval. The ac conductivity is proportional to ws. The value f s decreases with increasing temperature which suggests hopping conduction mechanism. The time dependence of the conductivity exhibited exponential decay. It shows two conductivity relaxations in mentioned temperature interval. Moreover, the characteristic relaxation times decrease with decreasing annealing temperature. The two different relaxation times refer to two different incommensurate ordering in mentioned temperature interval.

KW - Conductivity

KW - Layered crystals

KW - Phase transition

KW - Relaxation

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U2 - 10.1002/crat.200410333

DO - 10.1002/crat.200410333

M3 - Article

AN - SCOPUS:25444435669

SN - 0232-1300

VL - 40

SP - 248

EP - 252

JO - Crystal Research and Technology

JF - Crystal Research and Technology

IS - 3

ER -

Incommensurate phase properties of TlGaSe₂ layered crystals

Abstract

Keywords

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