Valence measurement of Mn oxides using Mn K-beta emission spectroscopy

Q Qian; TA Tyson; CC Kao; JP Rueff; FMF deGroot; M Croft; SW Cheong; M Greenblatt; MA Subramanian; Frank de Groot

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

Valence measurement of Mn oxides using Mn K-beta emission spectroscopy

Q Qian, TA Tyson, CC Kao^*, JP Rueff, FMF deGroot, M Croft, SW Cheong, M Greenblatt, MA Subramanian, Frank de Groot

^*Corresponding author for this work

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

Abstract

High resolution Mn K-beta 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 thr spectra for the perovskite LaMnO3 and CaMnO3 compounds are found to be very similar to Mn2O3 and MnO2, respectively. Detailed Mn K-beta 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. (C) 2000 Elsevier Science Ltd. All rights reserved.

Original language	English
Pages (from-to)	457-460
Number of pages	4
Journal	The journal of physics and chemistry of solids
Volume	61
Issue number	3
DOIs	https://doi.org/10.1016/S0022-3697(99)00336-4
Publication status	Published - Mar 2000
Event	International Workshop on Inelastic X-ray Scattering - LONG ISL CITY, United Kingdom Duration: 18 Oct 1998 → 21 Oct 1998

Keywords

valence measurement
EDGE

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10.1016/S0022-3697(99)00336-4

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title = "Valence measurement of Mn oxides using Mn K-beta emission spectroscopy",

abstract = "High resolution Mn K-beta 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 thr spectra for the perovskite LaMnO3 and CaMnO3 compounds are found to be very similar to Mn2O3 and MnO2, respectively. Detailed Mn K-beta 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. (C) 2000 Elsevier Science Ltd. All rights reserved.",

keywords = "valence measurement, EDGE",

author = "Q Qian and TA Tyson and CC Kao and JP Rueff and FMF deGroot and M Croft and SW Cheong and M Greenblatt and MA Subramanian and {de Groot}, Frank",

year = "2000",

month = mar,

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

language = "English",

volume = "61",

pages = "457--460",

journal = "The journal of physics and chemistry of solids",

issn = "0022-3697",

publisher = "Elsevier Ltd",

number = "3",

note = "International Workshop on Inelastic X-ray Scattering ; Conference date: 18-10-1998 Through 21-10-1998",

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TY - JOUR

T1 - Valence measurement of Mn oxides using Mn K-beta emission spectroscopy

AU - Qian, Q

AU - Tyson, TA

AU - Kao, CC

AU - Rueff, JP

AU - deGroot, FMF

AU - Croft, M

AU - Cheong, SW

AU - Greenblatt, M

AU - Subramanian, MA

AU - de Groot, Frank

PY - 2000/3

Y1 - 2000/3

N2 - High resolution Mn K-beta 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 thr spectra for the perovskite LaMnO3 and CaMnO3 compounds are found to be very similar to Mn2O3 and MnO2, respectively. Detailed Mn K-beta 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. (C) 2000 Elsevier Science Ltd. All rights reserved.

AB - High resolution Mn K-beta 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 thr spectra for the perovskite LaMnO3 and CaMnO3 compounds are found to be very similar to Mn2O3 and MnO2, respectively. Detailed Mn K-beta 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. (C) 2000 Elsevier Science Ltd. All rights reserved.

KW - valence measurement

KW - EDGE

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

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

M3 - Article

SN - 0022-3697

VL - 61

SP - 457

EP - 460

JO - The journal of physics and chemistry of solids

JF - The 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-beta emission spectroscopy

Abstract

Keywords

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