Effect of extra oxygen intercalation on the modulation structure and electronic structure of the Bi2201 system

G. Xu; Z. Mao; H. Yan; X. Liu; C. Xu; Y. Zhang

doi:10.1088/0953-2048/11/5/006

Effect of extra oxygen intercalation on the modulation structure and electronic structure of the Bi2201 system

G. Xu, Z. Mao, H. Yan, X. Liu, C. Xu, Y. Zhang

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Abstract

The incommensurate modulation structure and electronic structure of the Bi_2.1-xPb_xSr_0.9LaCuO_y system were investigated by means of Raman scattering, transmission electron microscopy and x-ray photoemission. Analyses of Raman spectra and electron diffraction reveal that, even though the extra oxygen behaviours in Bi₂O₂ layers for the three samples are very different, they possess a similar monoclinic modulation characteristic with modulation wavelength q_b = 4.0b, which supports the crystal misfit model. Analysis of XPS results indicates that extra oxygen intercalation has a strong influence on the electronic structure; a possible Bi 6s contribution to the valence band is suggested.

Original language	English (US)
Pages (from-to)	474-478
Number of pages	5
Journal	Superconductor Science and Technology
Volume	11
Issue number	5
DOIs	https://doi.org/10.1088/0953-2048/11/5/006
State	Published - May 1 1998

All Science Journal Classification (ASJC) codes

Ceramics and Composites
Condensed Matter Physics
Metals and Alloys
Electrical and Electronic Engineering
Materials Chemistry

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10.1088/0953-2048/11/5/006

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title = "Effect of extra oxygen intercalation on the modulation structure and electronic structure of the Bi2201 system",

abstract = "The incommensurate modulation structure and electronic structure of the Bi2.1-xPbxSr0.9LaCuOy system were investigated by means of Raman scattering, transmission electron microscopy and x-ray photoemission. Analyses of Raman spectra and electron diffraction reveal that, even though the extra oxygen behaviours in Bi2O2 layers for the three samples are very different, they possess a similar monoclinic modulation characteristic with modulation wavelength qb = 4.0b, which supports the crystal misfit model. Analysis of XPS results indicates that extra oxygen intercalation has a strong influence on the electronic structure; a possible Bi 6s contribution to the valence band is suggested.",

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T1 - Effect of extra oxygen intercalation on the modulation structure and electronic structure of the Bi2201 system

AU - Xu, G.

AU - Mao, Z.

AU - Yan, H.

AU - Liu, X.

AU - Xu, C.

AU - Zhang, Y.

PY - 1998/5/1

Y1 - 1998/5/1

N2 - The incommensurate modulation structure and electronic structure of the Bi2.1-xPbxSr0.9LaCuOy system were investigated by means of Raman scattering, transmission electron microscopy and x-ray photoemission. Analyses of Raman spectra and electron diffraction reveal that, even though the extra oxygen behaviours in Bi2O2 layers for the three samples are very different, they possess a similar monoclinic modulation characteristic with modulation wavelength qb = 4.0b, which supports the crystal misfit model. Analysis of XPS results indicates that extra oxygen intercalation has a strong influence on the electronic structure; a possible Bi 6s contribution to the valence band is suggested.

AB - The incommensurate modulation structure and electronic structure of the Bi2.1-xPbxSr0.9LaCuOy system were investigated by means of Raman scattering, transmission electron microscopy and x-ray photoemission. Analyses of Raman spectra and electron diffraction reveal that, even though the extra oxygen behaviours in Bi2O2 layers for the three samples are very different, they possess a similar monoclinic modulation characteristic with modulation wavelength qb = 4.0b, which supports the crystal misfit model. Analysis of XPS results indicates that extra oxygen intercalation has a strong influence on the electronic structure; a possible Bi 6s contribution to the valence band is suggested.

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Effect of extra oxygen intercalation on the modulation structure and electronic structure of the Bi2201 system

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