An electrostatic potential study of asymmetric ionic conductivity in Li2B4O7 crystals

Su Jae Kim; Won Kyung Kim; Yong Chan Cho; S. Park; I. K. Jeong; Y. S. Yang; Yoshihiro Kuroiwa; Chikako Moriyoshi; Hiroshi Tanaka; Masaki Takata; Se Young Jeong

doi:10.1016/j.cap.2010.10.019

An electrostatic potential study of asymmetric ionic conductivity in Li₂B₄O₇ crystals

Su Jae Kim, Won Kyung Kim, Yong Chan Cho, S. Park, I. K. Jeong, Y. S. Yang, Yoshihiro Kuroiwa, Chikako Moriyoshi, Hiroshi Tanaka, Masaki Takata, Se Young Jeong

SRIS - SR Core Research Division

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

5 Citations (Scopus)

Abstract

This study investigated the bonding nature and electrostatic potential of asymmetric Li ionic mobility in Li₂B₄O₇ crystals using the maximum entropy method (MEM) combined with Rietveld refinement and Ewalds technique. Compared with the interaction between oxygen and boron, Li⁺ ions exhibited weak interactions with both oxygen and boron. Furthermore, electrostatic-potential-distribution analysis showed that Li⁺ ions had a much weaker interaction with the matrix along the c-axis channel, suggesting that higher ionic conductivity occurred along the c-axis than along the a- and b-axes.

Original language	English
Pages (from-to)	649-652
Number of pages	4
Journal	Current Applied Physics
Volume	11
Issue number	3
DOIs	https://doi.org/10.1016/j.cap.2010.10.019
Publication status	Published - 2011 May

Keywords

Anisotropic ion conduction
Electron charge density distribution
Electrostatic potential
Li ion conduction
MEM/Rietveld

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10.1016/j.cap.2010.10.019

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title = "An electrostatic potential study of asymmetric ionic conductivity in Li2B4O7 crystals",

abstract = "This study investigated the bonding nature and electrostatic potential of asymmetric Li ionic mobility in Li2B4O7 crystals using the maximum entropy method (MEM) combined with Rietveld refinement and Ewalds technique. Compared with the interaction between oxygen and boron, Li+ ions exhibited weak interactions with both oxygen and boron. Furthermore, electrostatic-potential-distribution analysis showed that Li+ ions had a much weaker interaction with the matrix along the c-axis channel, suggesting that higher ionic conductivity occurred along the c-axis than along the a- and b-axes.",

keywords = "Anisotropic ion conduction, Electron charge density distribution, Electrostatic potential, Li ion conduction, MEM/Rietveld",

author = "Kim, {Su Jae} and Kim, {Won Kyung} and Cho, {Yong Chan} and S. Park and Jeong, {I. K.} and Yang, {Y. S.} and Yoshihiro Kuroiwa and Chikako Moriyoshi and Hiroshi Tanaka and Masaki Takata and Jeong, {Se Young}",

note = "Funding Information: This work was supported by the Korea Research Foundation Grant funded by the Korean Government (MOEHRD) ( KRF-2006-005-J02801 ). The SR experiments were carried out with the approval of the Japan Synchrotron Radiation Research Institute (JASRI)(Proposal Nos. 2009A1399 and 2009A0084). The sample used for this study was supplied from the Dielectric Crystal Bank supported by National Research Foundation of Korea. ",

year = "2011",

month = may,

doi = "10.1016/j.cap.2010.10.019",

language = "English",

volume = "11",

pages = "649--652",

journal = "Current Applied Physics",

issn = "1567-1739",

publisher = "Elsevier",

number = "3",

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TY - JOUR

T1 - An electrostatic potential study of asymmetric ionic conductivity in Li2B4O7 crystals

AU - Kim, Su Jae

AU - Kim, Won Kyung

AU - Cho, Yong Chan

AU - Park, S.

AU - Jeong, I. K.

AU - Yang, Y. S.

AU - Kuroiwa, Yoshihiro

AU - Moriyoshi, Chikako

AU - Tanaka, Hiroshi

AU - Takata, Masaki

AU - Jeong, Se Young

N1 - Funding Information: This work was supported by the Korea Research Foundation Grant funded by the Korean Government (MOEHRD) ( KRF-2006-005-J02801 ). The SR experiments were carried out with the approval of the Japan Synchrotron Radiation Research Institute (JASRI)(Proposal Nos. 2009A1399 and 2009A0084). The sample used for this study was supplied from the Dielectric Crystal Bank supported by National Research Foundation of Korea.

PY - 2011/5

Y1 - 2011/5

N2 - This study investigated the bonding nature and electrostatic potential of asymmetric Li ionic mobility in Li2B4O7 crystals using the maximum entropy method (MEM) combined with Rietveld refinement and Ewalds technique. Compared with the interaction between oxygen and boron, Li+ ions exhibited weak interactions with both oxygen and boron. Furthermore, electrostatic-potential-distribution analysis showed that Li+ ions had a much weaker interaction with the matrix along the c-axis channel, suggesting that higher ionic conductivity occurred along the c-axis than along the a- and b-axes.

AB - This study investigated the bonding nature and electrostatic potential of asymmetric Li ionic mobility in Li2B4O7 crystals using the maximum entropy method (MEM) combined with Rietveld refinement and Ewalds technique. Compared with the interaction between oxygen and boron, Li+ ions exhibited weak interactions with both oxygen and boron. Furthermore, electrostatic-potential-distribution analysis showed that Li+ ions had a much weaker interaction with the matrix along the c-axis channel, suggesting that higher ionic conductivity occurred along the c-axis than along the a- and b-axes.

KW - Anisotropic ion conduction

KW - Electron charge density distribution

KW - Electrostatic potential

KW - Li ion conduction

KW - MEM/Rietveld

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U2 - 10.1016/j.cap.2010.10.019

DO - 10.1016/j.cap.2010.10.019

M3 - Article

AN - SCOPUS:79951679617

SN - 1567-1739

VL - 11

SP - 649

EP - 652

JO - Current Applied Physics

JF - Current Applied Physics

IS - 3

ER -

An electrostatic potential study of asymmetric ionic conductivity in Li₂B₄O₇ crystals

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Keywords

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