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Insight into the te...
Insight into the temperature dependent properties of the ferromagnetic Kondo lattice YbNiSn
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- Generalov, A. (author)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory
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- Sokolov, D. A. (author)
- Max Planck Institute for Chemical Physics of Solids,University of Edinburgh
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- Chikina, A. (author)
- Dresden University of Technology
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- Kucherenko, Yu (author)
- G.V. Kurdyumov Institute for Metal Physics of National Academy of Sciences of Ukraine
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- Antonov, V. N. (author)
- G.V. Kurdyumov Institute for Metal Physics of National Academy of Sciences of Ukraine
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- Bekenov, L. V. (author)
- G.V. Kurdyumov Institute for Metal Physics of National Academy of Sciences of Ukraine
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- Patil, S. (author)
- Banaras Hindu University
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- Huxley, A. D. (author)
- University of Edinburgh
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- Allen, J. W. (author)
- University of Michigan
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- Matho, K. (author)
- University Grenoble Alpes
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- Kummer, K. (author)
- European Synchrotron Radiation Facility
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- Vyalikh, D. V. (author)
- Basque Foundation for Science,Donostia International Physics Center (DIPC),Saint Petersburg State University
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- Laubschat, C. (author)
- Dresden University of Technology
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(creator_code:org_t)
- 2017
- 2017
- English.
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In: Physical Review B. - 2469-9950. ; 95:18
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Abstract
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- Analyzing temperature dependent photoemission (PE) data of the ferromagnetic Kondo-lattice (KL) system YbNiSn in the light of the periodic Anderson model (PAM) we show that the KL behavior is not limited to temperatures below a temperature TK, defined empirically from resistivity and specific heat measurements. As characteristic for weakly hybridized Ce and Yb systems, the PE spectra reveal a 4f-derived Fermi level peak, which reflects contributions from the Kondo resonance and its crystal electric field (CEF) satellites. In YbNiSn this peak has an unusual temperature dependence: With decreasing temperature a steady linear increase of intensity is observed which extends over a large interval ranging from 100 K down to 1 K without showing any peculiarities in the region of TK∼TC=5.6 K. In the light of the single-impurity Anderson model (SIAM) this intensity variation reflects a linear increase of 4f occupancy with decreasing temperature, indicating an onset of Kondo screening at temperatures above 100 K. Within the PAM this phenomenon could be described by a non-Fermi-liquid-like T- linear damping of the self-energy which accounts phenomenologically for the feedback from the closely spaced CEF states.
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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Generalov, A.
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Sokolov, D. A.
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Chikina, A.
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Kucherenko, Yu
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Antonov, V. N.
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Bekenov, L. V.
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show more...
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Patil, S.
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Huxley, A. D.
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Allen, J. W.
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Matho, K.
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Kummer, K.
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Vyalikh, D. V.
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Laubschat, C.
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show less...
- 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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Physical Review ...
- By the university
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Lund University