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  Bulk properties of single crystals of the valence-unstable compound SmRh2Si2

Kliemt, K., Banda, J., Geibel, C., Brando, M., & Krellner, C. (2019). Bulk properties of single crystals of the valence-unstable compound SmRh2Si2. Materials Research Express, 6: 126104, pp. 1-6. doi:10.1088/2053-1591/ab5814.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0005-78ED-A Version Permalink: http://hdl.handle.net/21.11116/0000-0005-9E95-1
Genre: Journal Article

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 Creators:
Kliemt, K.1, Author
Banda, J.2, Author              
Geibel, C.3, Author              
Brando, M.4, Author              
Krellner, C.1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863462              
3Christoph Geibel, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863465              
4Manuel Brando, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863469              

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Free keywords: magnetism, Smcompounds, SmRh2Si2, valence instability, Van-Vleck, Ground state, Lutetium compounds, Magnetic susceptibility, Magnetism, Phase transitions, Rhodium compounds, Silicon compounds, Single crystals, Specific heat, Angle-resolved photoemission, Second-order phase transition, Smcompounds, SmRh2Si2, Susceptibility measurements, Transport measurements, Valence instability, Van-Vleck, Samarium compounds
 Abstract: We present the crystal growth as well as the structural, chemical and physical chracterization of SmRh2Si2 single crystals. Their ground state is antiferromagnetic, as indicated by the behaviour of the magnetic susceptibility and the specific heat at the second order phase transition observed at T N = 64 K. The Sommerfeld coefficient is small and similar to that of LuRh2Si2 with mJ/(molK2). Susceptibility measurements show no Curie-Weiss behaviour at high temperatures which is a consequence of the large Van-Vleck contribution of the excited multiplets of Sm3+. Previous angle-resolved photoemission studies showed that at 10 K, the valence of the Sm ions is smaller than three at the surface as well as in the bulk, suggesting a possible Kondo screening of the Sm3+ ions. This could not be observed in our thermodynamic and transport measurements. © 2019 IOP Publishing Ltd.

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Language(s): eng - English
 Dates: 2019-11-272019-11-27
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1088/2053-1591/ab5814
 Degree: -

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Title: Materials Research Express
  Other : Mater. Res. Express
Source Genre: Journal
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Publ. Info: Bristol : IoPP
Pages: - Volume / Issue: 6 Sequence Number: 126104 Start / End Page: 1 - 6 Identifier: Other: 2053-1591
CoNE: https://pure.mpg.de/cone/journals/resource/2053-1591