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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. (författare)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory
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- Sokolov, D. A. (författare)
- Max Planck Institute for Chemical Physics of Solids,University of Edinburgh
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- Chikina, A. (författare)
- Dresden University of Technology
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- Kucherenko, Yu (författare)
- G.V. Kurdyumov Institute for Metal Physics of National Academy of Sciences of Ukraine
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- Antonov, V. N. (författare)
- G.V. Kurdyumov Institute for Metal Physics of National Academy of Sciences of Ukraine
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- Bekenov, L. V. (författare)
- G.V. Kurdyumov Institute for Metal Physics of National Academy of Sciences of Ukraine
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- Patil, S. (författare)
- Banaras Hindu University
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- Huxley, A. D. (författare)
- University of Edinburgh
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- Allen, J. W. (författare)
- University of Michigan
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- Matho, K. (författare)
- University Grenoble Alpes
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- Kummer, K. (författare)
- European Synchrotron Radiation Facility
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- Vyalikh, D. V. (författare)
- Basque Foundation for Science,Donostia International Physics Center (DIPC),Saint Petersburg State University
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- Laubschat, C. (författare)
- Dresden University of Technology
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(creator_code:org_t)
- 2017
- 2017
- Engelska.
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Ingår i: Physical Review B. - 2469-9950. ; 95:18
- Relaterad länk:
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http://dx.doi.org/10... (free)
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Ämnesord
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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.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
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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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visa fler...
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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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visa färre...
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