Impedance spectroscopy of ionic conduction in hydrogen-bonded TlH 2PO 4

Se Hun Kim; Kyu Won Lee; Cheol Eui Lee

Impedance spectroscopy of ionic conduction in hydrogen-bonded TlH ₂PO ₄

Se Hun Kim^*
, Kyu Won Lee
, Cheol Eui Lee

^*Corresponding author for this work

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

5 Citations (Scopus)

Abstract

TlH ₂PO ₄, a hydrogen-bonded ferroelectric, was investigated by AC impedance measurements at various temperatures. Both the real and the imaginary impedance values showed anomalous behaviors at the ferroelastic-paraelastic transition. On the complex impedance plane, the Cole-Cole plots evolved into two regions with increasing temperature. The low-frequency region shows Warburg impedance (n ∼ 0.5), as in the case of surface conduction in solid electrolytes. The high-frequency conduction mechanism appears to be proton ionic transport in the bulk, The proton conduction for TlH ₂PO ₄ consists of two-phase elements, corresponding to a glass-like surface region and a normal bulk region.

Original language	English
Pages (from-to)	242-244
Number of pages	3
Journal	Journal of the Korean Physical Society
Volume	46
Issue number	1
Publication status	Published - 2005 Jan

Keywords

Hydrogen bond
Proton conductor
TlH PO

ASJC Scopus subject areas

General Physics and Astronomy

Cite this

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title = "Impedance spectroscopy of ionic conduction in hydrogen-bonded TlH 2PO 4 ",

abstract = "TlH 2PO 4, a hydrogen-bonded ferroelectric, was investigated by AC impedance measurements at various temperatures. Both the real and the imaginary impedance values showed anomalous behaviors at the ferroelastic-paraelastic transition. On the complex impedance plane, the Cole-Cole plots evolved into two regions with increasing temperature. The low-frequency region shows Warburg impedance (n ∼ 0.5), as in the case of surface conduction in solid electrolytes. The high-frequency conduction mechanism appears to be proton ionic transport in the bulk, The proton conduction for TlH 2PO 4 consists of two-phase elements, corresponding to a glass-like surface region and a normal bulk region.",

keywords = "Hydrogen bond, Proton conductor, TlH PO",

author = "Kim, \{Se Hun\} and Lee, \{Kyu Won\} and Lee, \{Cheol Eui\}",

year = "2005",

month = jan,

language = "English",

volume = "46",

pages = "242--244",

journal = "Journal of the Korean Physical Society",

issn = "0374-4884",

publisher = "Korean Physical Society",

number = "1",

}

TY - JOUR

T1 - Impedance spectroscopy of ionic conduction in hydrogen-bonded TlH 2PO 4

AU - Kim, Se Hun

AU - Lee, Kyu Won

AU - Lee, Cheol Eui

PY - 2005/1

Y1 - 2005/1

N2 - TlH 2PO 4, a hydrogen-bonded ferroelectric, was investigated by AC impedance measurements at various temperatures. Both the real and the imaginary impedance values showed anomalous behaviors at the ferroelastic-paraelastic transition. On the complex impedance plane, the Cole-Cole plots evolved into two regions with increasing temperature. The low-frequency region shows Warburg impedance (n ∼ 0.5), as in the case of surface conduction in solid electrolytes. The high-frequency conduction mechanism appears to be proton ionic transport in the bulk, The proton conduction for TlH 2PO 4 consists of two-phase elements, corresponding to a glass-like surface region and a normal bulk region.

AB - TlH 2PO 4, a hydrogen-bonded ferroelectric, was investigated by AC impedance measurements at various temperatures. Both the real and the imaginary impedance values showed anomalous behaviors at the ferroelastic-paraelastic transition. On the complex impedance plane, the Cole-Cole plots evolved into two regions with increasing temperature. The low-frequency region shows Warburg impedance (n ∼ 0.5), as in the case of surface conduction in solid electrolytes. The high-frequency conduction mechanism appears to be proton ionic transport in the bulk, The proton conduction for TlH 2PO 4 consists of two-phase elements, corresponding to a glass-like surface region and a normal bulk region.

KW - Hydrogen bond

KW - Proton conductor

KW - TlH PO

UR - https://www.scopus.com/pages/publications/12944335048

M3 - Article

AN - SCOPUS:12944335048

SN - 0374-4884

VL - 46

SP - 242

EP - 244

JO - Journal of the Korean Physical Society

JF - Journal of the Korean Physical Society

IS - 1

ER -

Impedance spectroscopy of ionic conduction in hydrogen-bonded TlH ₂PO ₄

Abstract

Keywords

ASJC Scopus subject areas

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