Impedance spectroscopy of the superprotonic conduction in LiH 2PO 4

Jin Jung Kweon; Kyu Won Lee; Cheol Eui Lee; Kwang Sei Lee; Y. J. Jo

doi:10.1063/1.4732790

Impedance spectroscopy of the superprotonic conduction in LiH ₂PO ₄

Jin Jung Kweon, Kyu Won Lee, Cheol Eui Lee, Kwang Sei Lee, Y. J. Jo

Department of Physics

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

12 Citations (Scopus)

Abstract

Superprotonic conduction in the LiH ₂PO ₄ (LDP) system has been studied by means of impedance spectroscopy. A dielectric dispersion associated with room-temperature superionic conduction is manifested, as the temperature-dependent dielectric constant displays a broad peak shifting toward the high temperatures with increasing measuring frequency. In particular, our impedance spectroscopic analysis in distinct temperature ranges has revealed the evolution of the microscopic proton dynamics and inhomogeneous electric environments associated with the dynamics of the two distinct hydrogen-bond types in LDP.

Original language	English
Article number	012905
Journal	Applied Physics Letters
Volume	101
Issue number	1
DOIs	https://doi.org/10.1063/1.4732790
Publication status	Published - 2012 Jul 2

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (Cyclotron Users Program 2012029495 and NRL Program 2012-0006259). The measurements at the Korean Basic Science Institute (KBSI) are gratefully acknowledged.

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

Access to Document

10.1063/1.4732790

Cite this

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title = "Impedance spectroscopy of the superprotonic conduction in LiH 2PO 4 ",

abstract = "Superprotonic conduction in the LiH 2PO 4 (LDP) system has been studied by means of impedance spectroscopy. A dielectric dispersion associated with room-temperature superionic conduction is manifested, as the temperature-dependent dielectric constant displays a broad peak shifting toward the high temperatures with increasing measuring frequency. In particular, our impedance spectroscopic analysis in distinct temperature ranges has revealed the evolution of the microscopic proton dynamics and inhomogeneous electric environments associated with the dynamics of the two distinct hydrogen-bond types in LDP.",

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AU - Eui Lee, Cheol

AU - Lee, Kwang Sei

AU - Jo, Y. J.

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N2 - Superprotonic conduction in the LiH 2PO 4 (LDP) system has been studied by means of impedance spectroscopy. A dielectric dispersion associated with room-temperature superionic conduction is manifested, as the temperature-dependent dielectric constant displays a broad peak shifting toward the high temperatures with increasing measuring frequency. In particular, our impedance spectroscopic analysis in distinct temperature ranges has revealed the evolution of the microscopic proton dynamics and inhomogeneous electric environments associated with the dynamics of the two distinct hydrogen-bond types in LDP.

AB - Superprotonic conduction in the LiH 2PO 4 (LDP) system has been studied by means of impedance spectroscopy. A dielectric dispersion associated with room-temperature superionic conduction is manifested, as the temperature-dependent dielectric constant displays a broad peak shifting toward the high temperatures with increasing measuring frequency. In particular, our impedance spectroscopic analysis in distinct temperature ranges has revealed the evolution of the microscopic proton dynamics and inhomogeneous electric environments associated with the dynamics of the two distinct hydrogen-bond types in LDP.

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