Published November 2019
| Version v1
Journal article
Milling-induced chemical decomposition of the surface of EuBaCo2O5.5 powders studied by means of soft X-ray absorption spectroscopy
Creators
- 1. Institute of Natural Sciences and Mathematics, Ural Federal University, 620083 Yekaterinburg (Russian Federation)
- 2. Ural State Mining University, Yekaterinburg 620137 (Russian Federation)
- 3. M. N. Mikheev Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences, Yekaterinburg 620108 (Russian Federation)
- 4. Ural State University of Railway Transport, Yekaterinburg 620134 (Russian Federation)
- 5. National Research Lobachevsky State University of Nizhni Novgorod (Lobachevsky University), Nizhni Novgorod (Russian Federation)
- 6. Helmholtz-Zentrum Berlin für Materialien und Energie, BESSY II, Berlin 12489 (Germany)
Description
We present results of soft X-ray absorption spectroscopy studies of EuBaCo2O5.5 powders subjected to mechanical impact (milling in a ball mill). We show that in the near-surface region (5–10 nm) of particles of the powder, EuBaCo2O5.5 decomposes into Co3O4, BaCO3, and EuCoO3. A knowledge of the low-spin state of Co3+ ions in EuCoO3 and Co3O4 and possibilities of surface-sensitive soft X-ray absorption spectroscopy have allowed to determine the composition of the EuBaCo2O5.5 sample subjected to mechanical impact near its surface, which is inaccessible to standard X-ray phase analysis.
Additional details
Identifiers
- DOI
- 10.1016/j.apsusc.2019.07.014;
- PII
- S0169433219320501;
Publishing Information
- Journal Title
- Applied Surface Science
- Journal Volume
- 493
- Journal Page Range
- p. 1048-1054
- ISSN
- 0169-4332
- CODEN
- ASUSEE
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 55042159
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- ABSORPTION SPECTROSCOPY; BARIUM CARBONATES; COBALT OXIDES; PHASE STUDIES; POWDERS; SOFT X RADIATION; SPIN; SURFACES; X-RAY SPECTROSCOPY
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; ANGULAR MOMENTUM; BARIUM COMPOUNDS; CARBON COMPOUNDS; CARBONATES; CHALCOGENIDES; COBALT COMPOUNDS; ELECTROMAGNETIC RADIATION; IONIZING RADIATIONS; OXIDES; OXYGEN COMPOUNDS; PARTICLE PROPERTIES; RADIATIONS; SPECTROSCOPY; TRANSITION ELEMENT COMPOUNDS; X RADIATION
Optional Information
- Copyright
- Copyright (c) 2019 Elsevier B.V. All rights reserved.