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Title: Alternating-current conductivity and dielectric relaxation of bulk iodoargentate

Abstract

Graphical abstract: The electric modulus shows single dielectric relaxation process in the measured frequency range. - Highlights: • The conduction mechanism is described by quantum mechanical tunneling model. • The applications of dielectric modulus give a simple method for evaluating the activation energy of the dielectric relaxation. • The [Ag{sub 2}I{sub 4}]{sup 2−}1-D chain and [Cu(en){sub 2}]{sup 2+} cation column form the layered stacks by hydrogen bond interactions. - Abstract: An inorganic-organic hybrid compound Cu(en){sub 2}Ag{sub 2}I{sub 4} (en = ethylenediamine) (1) was synthesized and single crystal structurally characterized. Along the [001] direction, the inorganic parts form an infinite 1-D chain and [Cu(en){sub 2}]{sup 2+} cations are separated by inorganic chain. The electrical conductivity and dielectric properties of 1 have been investigated over wide ranges of frequency. The alternating-current conductivities have been fitted to the Almond–West type power law expression with use of a single value of S. It is found that S values for 1 are nearly temperature-independent, which indicates that the conduction mechanism could be quantum mechanical tunneling (QMT) model. The dielectric loss and electric modulus show single dielectric relaxation process. The activation energy obtained from temperature-dependent electric modulus compare with the calculated from the dc conductivity plots.

Authors:
; ;
Publication Date:
OSTI Identifier:
22475765
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 65; Other Information: Copyright (c) 2015 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ACTIVATION ENERGY; ALTERNATING CURRENT; COPPER COMPOUNDS; DIELECTRIC MATERIALS; DIELECTRIC PROPERTIES; ELECTRIC CONDUCTIVITY; ELECTROCHEMISTRY; INTERACTIONS; IODINE COMPOUNDS; MONOCRYSTALS; QUANTUM MECHANICS; RELAXATION; SILVER COMPOUNDS; SPECTROSCOPY; TEMPERATURE DEPENDENCE; THERMAL CONDUCTIVITY; TUNNEL EFFECT; X-RAY DIFFRACTION

Citation Formats

Duan, Hai-Bao, E-mail: duanhaibao4660@163.com, Yu, Shan-Shan, and Zhou, Hong. Alternating-current conductivity and dielectric relaxation of bulk iodoargentate. United States: N. p., 2015. Web. doi:10.1016/J.MATERRESBULL.2015.01.049.
Duan, Hai-Bao, E-mail: duanhaibao4660@163.com, Yu, Shan-Shan, & Zhou, Hong. Alternating-current conductivity and dielectric relaxation of bulk iodoargentate. United States. doi:10.1016/J.MATERRESBULL.2015.01.049.
Duan, Hai-Bao, E-mail: duanhaibao4660@163.com, Yu, Shan-Shan, and Zhou, Hong. Fri . "Alternating-current conductivity and dielectric relaxation of bulk iodoargentate". United States. doi:10.1016/J.MATERRESBULL.2015.01.049.
@article{osti_22475765,
title = {Alternating-current conductivity and dielectric relaxation of bulk iodoargentate},
author = {Duan, Hai-Bao, E-mail: duanhaibao4660@163.com and Yu, Shan-Shan and Zhou, Hong},
abstractNote = {Graphical abstract: The electric modulus shows single dielectric relaxation process in the measured frequency range. - Highlights: • The conduction mechanism is described by quantum mechanical tunneling model. • The applications of dielectric modulus give a simple method for evaluating the activation energy of the dielectric relaxation. • The [Ag{sub 2}I{sub 4}]{sup 2−}1-D chain and [Cu(en){sub 2}]{sup 2+} cation column form the layered stacks by hydrogen bond interactions. - Abstract: An inorganic-organic hybrid compound Cu(en){sub 2}Ag{sub 2}I{sub 4} (en = ethylenediamine) (1) was synthesized and single crystal structurally characterized. Along the [001] direction, the inorganic parts form an infinite 1-D chain and [Cu(en){sub 2}]{sup 2+} cations are separated by inorganic chain. The electrical conductivity and dielectric properties of 1 have been investigated over wide ranges of frequency. The alternating-current conductivities have been fitted to the Almond–West type power law expression with use of a single value of S. It is found that S values for 1 are nearly temperature-independent, which indicates that the conduction mechanism could be quantum mechanical tunneling (QMT) model. The dielectric loss and electric modulus show single dielectric relaxation process. The activation energy obtained from temperature-dependent electric modulus compare with the calculated from the dc conductivity plots.},
doi = {10.1016/J.MATERRESBULL.2015.01.049},
journal = {Materials Research Bulletin},
issn = {0025-5408},
number = ,
volume = 65,
place = {United States},
year = {2015},
month = {5}
}