On BSCCO superconductor-related Bi{sub 2}Sr{sub 2}MnO{sub 6+x} and BiPbSr{sub 2}MnO{sub 6}: X-ray absorption spectroscopy and diffraction study

Catti, M; Moelgg, M; Dalba, G; Fornasini, P

doi:10.1006/jssc.1994.1322

Title: On BSCCO superconductor-related Bi{sub 2}Sr{sub 2}MnO{sub 6+x} and BiPbSr{sub 2}MnO{sub 6}: X-ray absorption spectroscopy and diffraction study

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Abstract

Bi{sub 2}Sr{sub 2}MnO{sub 6+x} and BiPbSr{sub 2}MnO{sub 6}, isotypic with the 2201 BSCCO superconductor, were investigated by X-ray powder diffraction and X-ray absorption spectroscopy (synchrotron radiation). The unit-cell constants are a = 21.796(3), b = 5.4268(7), c = 23.612(2) {Angstrom}, and a = 5.3186(8), b = 5.3892(8), c = 23.765(3) {Angstrom}, respectively. Superlattice modulation peaks (h {ne} 4n) are evident in the diffractogram of the first phase. XAFS spectra at the K edge of manganese were recorded for the two compounds and for metallic Mn, MnO, and Mn{sub 2}O{sub 3}. An energy shift of about 1.5 eV is observed between the profiles of the two phases. By comparison of spectral features with those of the simple oxides, the oxidation state of Mn is inferred to be +2.6(1) and +2.9(1) in Bi{sub 2}Sr{sub 2}MnO{sub 6+x} and BiPbSr{sub 2}MnO{sub 6}, respectively.

Authors:

Catti, M; Moelgg, M ^[1]; Dalba, G; Fornasini, P ^[2]

Universita di Milano (Italy)
Universita di Trento, Povo (Italy)

Publication Date:: Sat Oct 01 00:00:00 EDT 1994

OSTI Identifier:: 508698

Resource Type:: Journal Article

Journal Name:: Journal of Solid State Chemistry

Additional Journal Information:: Journal Volume: 112; Journal Issue: 2; Other Information: PBD: Oct 1994

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; 40 CHEMISTRY; BISMUTH OXIDES; X-RAY SPECTROSCOPY; X-RAY DIFFRACTION; STRONTIUM OXIDES; MANGANESE OXIDES; LEAD OXIDES; SYNCHROTRON RADIATION; OXIDATION; ABSORPTION SPECTROSCOPY; SUPERCONDUCTORS; VALENCE

Citation Formats


                    Catti, M, Moelgg, M, Dalba, G, and Fornasini, P. On BSCCO superconductor-related Bi{sub 2}Sr{sub 2}MnO{sub 6+x} and BiPbSr{sub 2}MnO{sub 6}: X-ray absorption spectroscopy and diffraction study.  United States: N. p., 1994. 
        Web.  doi:10.1006/jssc.1994.1322.

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                    Catti, M, Moelgg, M, Dalba, G, & Fornasini, P. On BSCCO superconductor-related Bi{sub 2}Sr{sub 2}MnO{sub 6+x} and BiPbSr{sub 2}MnO{sub 6}: X-ray absorption spectroscopy and diffraction study.  United States.  https://doi.org/10.1006/jssc.1994.1322

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                    Catti, M, Moelgg, M, Dalba, G, and Fornasini, P. 1994.  
        "On BSCCO superconductor-related Bi{sub 2}Sr{sub 2}MnO{sub 6+x} and BiPbSr{sub 2}MnO{sub 6}: X-ray absorption spectroscopy and diffraction study".  United States.  https://doi.org/10.1006/jssc.1994.1322.

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@article{osti_508698,

  title        = {On BSCCO superconductor-related Bi{sub 2}Sr{sub 2}MnO{sub 6+x} and BiPbSr{sub 2}MnO{sub 6}: X-ray absorption spectroscopy and diffraction study},

  author       = {Catti, M and Moelgg, M and Dalba, G and Fornasini, P},

  abstractNote = {Bi{sub 2}Sr{sub 2}MnO{sub 6+x} and BiPbSr{sub 2}MnO{sub 6}, isotypic with the 2201 BSCCO superconductor, were investigated by X-ray powder diffraction and X-ray absorption spectroscopy (synchrotron radiation). The unit-cell constants are a = 21.796(3), b = 5.4268(7), c = 23.612(2) {Angstrom}, and a = 5.3186(8), b = 5.3892(8), c = 23.765(3) {Angstrom}, respectively. Superlattice modulation peaks (h {ne} 4n) are evident in the diffractogram of the first phase. XAFS spectra at the K edge of manganese were recorded for the two compounds and for metallic Mn, MnO, and Mn{sub 2}O{sub 3}. An energy shift of about 1.5 eV is observed between the profiles of the two phases. By comparison of spectral features with those of the simple oxides, the oxidation state of Mn is inferred to be +2.6(1) and +2.9(1) in Bi{sub 2}Sr{sub 2}MnO{sub 6+x} and BiPbSr{sub 2}MnO{sub 6}, respectively.},

  doi          = {10.1006/jssc.1994.1322},

  url          = {https://www.osti.gov/biblio/508698},
  journal      = {Journal of Solid State Chemistry},
number       = 2,

  volume       = 112,

  place        = {United States},

  year         = {Sat Oct 01 00:00:00 EDT 1994},

  month        = {Sat Oct 01 00:00:00 EDT 1994}

}

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https://doi.org/10.1006/jssc.1994.1322

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