Polarized X-ray absorption spectroscopic study on mercuric bromide intercalated Bi2Sr2CaCu2Oysingle crystal

Seong Ju Hwang, Jin Ho Choy

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Polarized X-ray absorption spectroscopic experiments have been carried out for the mercuric bromide intercalated Bi2Sr2CaCu2Oysingle crystal, in order to understand the variation of anisotropic resistivities upon HgBr2intercalation as well as to probe the electronic structure of HgBr2intercalate. The Br K- and Bi Lin-edge spectra indicate a significant electron transfer from bismuth to bromine, implying an overlap between Bi 6s and Br 4p orbitals. From the Hg LIII- and Br K-edge data, it is also found that HgBr2intercalation gives rise to an electron localization in the (Hg-Br) bond, which leads to poor electronic conduction along the intercalant layer. In this context, the semiconducting out-of-plane resistivity of HgBr2intercalate can be explained by the poor conductivity of the intercalated HgBr2layer, even though the orbital overlap between Bi and Br facilitates the electron conduction between host and guest along the c-axis.

Original languageEnglish
Pages (from-to)39-44
Number of pages6
JournalJournal of Solid State Chemistry
Volume160
Issue number1
DOIs
Publication statusPublished - 2001 Jan 1

Fingerprint

X ray absorption
bromides
orbitals
Crystals
electrical resistivity
Electrons
bromine
conduction electrons
bismuth
crystals
Bromine
electron transfer
Bismuth
x rays
electronic structure
conduction
conductivity
Electronic structure
probes
electronics

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

Cite this

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title = "Polarized X-ray absorption spectroscopic study on mercuric bromide intercalated Bi2Sr2CaCu2Oysingle crystal",
abstract = "Polarized X-ray absorption spectroscopic experiments have been carried out for the mercuric bromide intercalated Bi2Sr2CaCu2Oysingle crystal, in order to understand the variation of anisotropic resistivities upon HgBr2intercalation as well as to probe the electronic structure of HgBr2intercalate. The Br K- and Bi Lin-edge spectra indicate a significant electron transfer from bismuth to bromine, implying an overlap between Bi 6s and Br 4p orbitals. From the Hg LIII- and Br K-edge data, it is also found that HgBr2intercalation gives rise to an electron localization in the (Hg-Br) bond, which leads to poor electronic conduction along the intercalant layer. In this context, the semiconducting out-of-plane resistivity of HgBr2intercalate can be explained by the poor conductivity of the intercalated HgBr2layer, even though the orbital overlap between Bi and Br facilitates the electron conduction between host and guest along the c-axis.",
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Polarized X-ray absorption spectroscopic study on mercuric bromide intercalated Bi2Sr2CaCu2Oysingle crystal. / Hwang, Seong Ju; Choy, Jin Ho.

In: Journal of Solid State Chemistry, Vol. 160, No. 1, 01.01.2001, p. 39-44.

Research output: Contribution to journalArticle

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AU - Hwang, Seong Ju

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N2 - Polarized X-ray absorption spectroscopic experiments have been carried out for the mercuric bromide intercalated Bi2Sr2CaCu2Oysingle crystal, in order to understand the variation of anisotropic resistivities upon HgBr2intercalation as well as to probe the electronic structure of HgBr2intercalate. The Br K- and Bi Lin-edge spectra indicate a significant electron transfer from bismuth to bromine, implying an overlap between Bi 6s and Br 4p orbitals. From the Hg LIII- and Br K-edge data, it is also found that HgBr2intercalation gives rise to an electron localization in the (Hg-Br) bond, which leads to poor electronic conduction along the intercalant layer. In this context, the semiconducting out-of-plane resistivity of HgBr2intercalate can be explained by the poor conductivity of the intercalated HgBr2layer, even though the orbital overlap between Bi and Br facilitates the electron conduction between host and guest along the c-axis.

AB - Polarized X-ray absorption spectroscopic experiments have been carried out for the mercuric bromide intercalated Bi2Sr2CaCu2Oysingle crystal, in order to understand the variation of anisotropic resistivities upon HgBr2intercalation as well as to probe the electronic structure of HgBr2intercalate. The Br K- and Bi Lin-edge spectra indicate a significant electron transfer from bismuth to bromine, implying an overlap between Bi 6s and Br 4p orbitals. From the Hg LIII- and Br K-edge data, it is also found that HgBr2intercalation gives rise to an electron localization in the (Hg-Br) bond, which leads to poor electronic conduction along the intercalant layer. In this context, the semiconducting out-of-plane resistivity of HgBr2intercalate can be explained by the poor conductivity of the intercalated HgBr2layer, even though the orbital overlap between Bi and Br facilitates the electron conduction between host and guest along the c-axis.

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