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Insight into the Te...
Insight into the Temperature Evolution of Electronic Structure and Mechanism of Exchange Interaction in EuS
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- Fedorov, A. V. (author)
- Leibniz Institute for Solid State and Materials Research,Helmholtz-Zentrum Berlin für Materialien und Energie GmbH
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- Poelchen, G. (author)
- Leibniz Institute for Solid State and Materials Research,European Synchrotron Radiation Facility
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- Eremeev, S. V. (author)
- Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Sciences
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- Schulz, S. (author)
- Leibniz Institute for Solid State and Materials Research
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- Generalov, A. (author)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory
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- Polley, C. (author)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory
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- Laubschat, C. (author)
- Leibniz Institute for Solid State and Materials Research
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- Kliemt, K. (author)
- Goethe University
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- Kaya, N. (author)
- Goethe University
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- Krellner, C. (author)
- Goethe University
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- Chulkov, E. V. (author)
- Tomsk State University,University of the Basque Country,Saint Petersburg State University,Donostia International Physics Center (DIPC)
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- Kummer, K. (author)
- European Synchrotron Radiation Facility
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- Usachov, D. Yu (author)
- Saint Petersburg State University
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- Ernst, A. (author)
- Max Planck Institute of Microstructure Physics,Johannes-Kepler-University of Linz
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- Vyalikh, D. V. (author)
- Donostia International Physics Center (DIPC),Basque Foundation for Science
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(creator_code:org_t)
- 2021-08-24
- 2021
- English 7 s.
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In: Journal of Physical Chemistry Letters. - : American Chemical Society (ACS). - 1948-7185. ; 12:34, s. 8328-8334
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http://dx.doi.org/10...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
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- Discovered in 1962, the divalent ferromagnetic semiconductor EuS (TC = 16.5 K, Eg = 1.65 eV) has remained constantly relevant to the engineering of novel magnetically active interfaces, heterostructures, and multilayer sequences and to combination with topological materials. Because detailed information on the electronic structure of EuS and, in particular, its evolution across TC is not well-represented in the literature but is essential for the development of new functional systems, the present work aims at filling this gap. Our angle-resolved photoemission measurements complemented with first-principles calculations demonstrate how the electronic structure of EuS evolves across a paramagnetic-ferromagnetic transition. Our results emphasize the importance of the strong Eu 4f-S 3p mixing for exchange-magnetic splittings of the sulfur-derived bands as well as coupling between f and d orbitals of neighboring Eu atoms to derive the value of TC accurately. The 4f-3p mixing facilitates the coupling between 4f and 5d orbitals of neighboring Eu atoms, which mainly governs the exchange interaction in EuS.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
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- art (subject category)
- ref (subject category)
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- By the author/editor
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Fedorov, A. V.
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Poelchen, G.
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Eremeev, S. V.
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Schulz, S.
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Generalov, A.
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Polley, C.
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show more...
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Laubschat, C.
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Kliemt, K.
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Kaya, N.
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Krellner, C.
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Chulkov, E. V.
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Kummer, K.
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Usachov, D. Yu
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Ernst, A.
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Vyalikh, D. V.
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Condensed Matter ...
- Articles in the publication
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Journal of Physi ...
- By the university
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Lund University