Laboratory hard X-ray photoelectron spectroscopy of La$_{1-x}$Sr$_{x}$MnO$_{3}$
| Autor: | Keisuke Kobayashi, Mario Okawa, Eiji Ikenaga, M. Kobata, Kazushige Ohbayashi, Takeharu Sugiyama, Tomoko Hishida, Tomohiko Saitoh |
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| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Condensed Matter - Materials Science
Materials science Strongly Correlated Electrons (cond-mat.str-el) Physics and Astronomy (miscellaneous) General Engineering Bremsstrahlung Synchrotron Radiation Source Analytical chemistry Materials Science (cond-mat.mtrl-sci) FOS: Physical sciences General Physics and Astronomy Synchrotron radiation Electronic structure Electron spectroscopy Chemical state Condensed Matter - Strongly Correlated Electrons X-ray photoelectron spectroscopy Spectroscopy |
| Popis: | A laboratory hard X-ray photoelectron spectroscopy (HXPS) system equipped with a monochromatic Cr K$\alpha$ ($h\nu = 5414.7$ eV) X-ray source was applied to an investigation of the core-level electronic structure of La$_{1-x}$Sr$_x$MnO$_3$. No appreciable high binding-energy shoulder in the O $1s$ HXPS spectra were observed while an enhanced low binding-energy shoulder structure in the Mn $2p_{3/2}$ HXPS spectra were observed, both of which are manifestation of high bulk sensitivity. Such high bulk sensitivity enabled us to track the Mn $2p_{3/2}$ shoulder structure in the full range of $x$, giving us a new insight into the binding-energy shift of the Mn $2p_{3/2}$ core level. Comparisons with the results using the conventional laboratory XPS ($h\nu = 1486.6$ eV) as well as those using a synchrotron radiation source ($h\nu = 7939.9$ eV) demonstrate that HXPS is a powerful and convenient tool to analyze the bulk electronic structure of a host of different compounds. Comment: 5 pages, 6 figures |
| Databáze: | OpenAIRE |
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