Valence measurement of Mn oxides using Mn Kβ emission spectroscopy

Q. Qian; T. A. Tyson; C. C. Kao; J. P. Rueff; F. M.F. Degroot; M. Croft; S. W. Cheong; M. Greenblatt; M. A. Subramanian

doi:10.1016/S0022-3697(99)00336-4

Valence measurement of Mn oxides using Mn K_β emission spectroscopy

Q. Qian, T. A. Tyson, C. C. Kao, J. P. Rueff, F. M.F. Degroot, M. Croft, S. W. Cheong, M. Greenblatt, M. A. Subramanian

Physics

Research output: Contribution to journal › Conference article › peer-review

12 Scopus citations

Abstract

High resolution Mn K_β emission spectra provide a direct method to probe the effective spin state and charge density on Mn sites. Direct comparison of MnF₂ and MnO reveals significant changes due to the degree of covalency. The detailed shape and energy shift of the spectra for the perovskite LaMnO₃ and CaMnO₃ compounds are found to be very similar to Mn₂O₃ and MnO₂, respectively. Detailed Mn K_β X-ray emission results on La_1-xCa_xMnO₃ can be well fit by linear superpositions of the end member spectra. However, for x<0.3, a retarded response is found. No evidence for Mn²⁺ is found.

Original language	English (US)
Pages (from-to)	457-460
Number of pages	4
Journal	Journal of Physics and Chemistry of Solids
Volume	61
Issue number	3
DOIs	https://doi.org/10.1016/S0022-3697(99)00336-4
State	Published - Mar 2000
Event	International Workshop on Inelastic X-ray Scattering - Long Island, NY, USA Duration: Oct 18 1998 → Oct 21 1998

All Science Journal Classification (ASJC) codes

General Chemistry
General Materials Science
Condensed Matter Physics

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title = "Valence measurement of Mn oxides using Mn Kβ emission spectroscopy",

abstract = "High resolution Mn Kβ emission spectra provide a direct method to probe the effective spin state and charge density on Mn sites. Direct comparison of MnF2 and MnO reveals significant changes due to the degree of covalency. The detailed shape and energy shift of the spectra for the perovskite LaMnO3 and CaMnO3 compounds are found to be very similar to Mn2O3 and MnO2, respectively. Detailed Mn Kβ X-ray emission results on La1-xCaxMnO3 can be well fit by linear superpositions of the end member spectra. However, for x<0.3, a retarded response is found. No evidence for Mn2+ is found.",

author = "Q. Qian and Tyson, {T. A.} and Kao, {C. C.} and Rueff, {J. P.} and Degroot, {F. M.F.} and M. Croft and Cheong, {S. W.} and M. Greenblatt and Subramanian, {M. A.}",

note = "Funding Information: Data acquisition was done at X21A at Brookhaven National Laboratory's National Synchrotron Light Source, which is funded by the US Department of Energy. This work is supported by Department of Energy, Office of Basic Energy Sciences Grant DE-FG02-79ER45665 and American Chemical Society—Petroleum Research Fund Grant 31750-G5. We are indebted to S.P. Cramer and U. Bergmann of the University of California at Davis for providing the Si(440) crystal used in our analyzer.; International Workshop on Inelastic X-ray Scattering ; Conference date: 18-10-1998 Through 21-10-1998",

year = "2000",

month = mar,

doi = "10.1016/S0022-3697(99)00336-4",

language = "English (US)",

volume = "61",

pages = "457--460",

journal = "Journal of Physics and Chemistry of Solids",

issn = "0022-3697",

publisher = "Elsevier Ltd",

number = "3",

}

TY - JOUR

T1 - Valence measurement of Mn oxides using Mn Kβ emission spectroscopy

AU - Qian, Q.

AU - Tyson, T. A.

AU - Kao, C. C.

AU - Rueff, J. P.

AU - Degroot, F. M.F.

AU - Croft, M.

AU - Cheong, S. W.

AU - Greenblatt, M.

AU - Subramanian, M. A.

N1 - Funding Information: Data acquisition was done at X21A at Brookhaven National Laboratory's National Synchrotron Light Source, which is funded by the US Department of Energy. This work is supported by Department of Energy, Office of Basic Energy Sciences Grant DE-FG02-79ER45665 and American Chemical Society—Petroleum Research Fund Grant 31750-G5. We are indebted to S.P. Cramer and U. Bergmann of the University of California at Davis for providing the Si(440) crystal used in our analyzer.

PY - 2000/3

Y1 - 2000/3

N2 - High resolution Mn Kβ emission spectra provide a direct method to probe the effective spin state and charge density on Mn sites. Direct comparison of MnF2 and MnO reveals significant changes due to the degree of covalency. The detailed shape and energy shift of the spectra for the perovskite LaMnO3 and CaMnO3 compounds are found to be very similar to Mn2O3 and MnO2, respectively. Detailed Mn Kβ X-ray emission results on La1-xCaxMnO3 can be well fit by linear superpositions of the end member spectra. However, for x<0.3, a retarded response is found. No evidence for Mn2+ is found.

AB - High resolution Mn Kβ emission spectra provide a direct method to probe the effective spin state and charge density on Mn sites. Direct comparison of MnF2 and MnO reveals significant changes due to the degree of covalency. The detailed shape and energy shift of the spectra for the perovskite LaMnO3 and CaMnO3 compounds are found to be very similar to Mn2O3 and MnO2, respectively. Detailed Mn Kβ X-ray emission results on La1-xCaxMnO3 can be well fit by linear superpositions of the end member spectra. However, for x<0.3, a retarded response is found. No evidence for Mn2+ is found.

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U2 - 10.1016/S0022-3697(99)00336-4

DO - 10.1016/S0022-3697(99)00336-4

M3 - Conference article

AN - SCOPUS:0033874488

SN - 0022-3697

VL - 61

SP - 457

EP - 460

JO - Journal of Physics and Chemistry of Solids

JF - Journal of Physics and Chemistry of Solids

IS - 3

T2 - International Workshop on Inelastic X-ray Scattering

Y2 - 18 October 1998 through 21 October 1998

ER -

Valence measurement of Mn oxides using Mn K_β emission spectroscopy

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