Peyker, L. ; Gold, C. ; Scheidt, E.-W. ; Michor, H. ; Unruh, T. ; Senyshyn, A. ; Stockert, O. ; Scherer, W. (2010)
Crystal field studies on the heavy fermion compound CeNi₈CuGe₄.
In: Journal of Physics: Conference Series, 200 (1)
doi: 10.1088/1742-6596/200/1/012160
Artikel, Bibliographie
Dies ist die neueste Version dieses Eintrags.
Kurzbeschreibung (Abstract)
Substitution of nickel by copper in the heavy fermion system CeNi₉₋ₓCuₓGe₄ alters the local crystal field environment of the Ce³⁺-ions. This leads to a quantum phase transition near x ≈ 0.4, which is not only driven by the competition between Kondo effect and RKKY interaction, but also by a reduction of an effectively fourfold to a twofold degenerate crystal field ground state. To study the consequences of a changing crystal field in CeNi₈CuGe₄ on its Kondo properties, inelastic neutron scattering (INS) experiments were performed. Two well-defined crystal field transitions were observed in the energy-loss spectra at 4K. The crystal field level scheme determined by neutron spectroscopy is compared with results from specific heat measurements.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2010 |
| Autor(en): | Peyker, L. ; Gold, C. ; Scheidt, E.-W. ; Michor, H. ; Unruh, T. ; Senyshyn, A. ; Stockert, O. ; Scherer, W. |
| Art des Eintrags: | Bibliographie |
| Titel: | Crystal field studies on the heavy fermion compound CeNi₈CuGe₄ |
| Sprache: | Englisch |
| Publikationsjahr: | 1 Januar 2010 |
| Ort: | Bristol |
| Verlag: | IOP Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Physics: Conference Series |
| Jahrgang/Volume einer Zeitschrift: | 200 |
| (Heft-)Nummer: | 1 |
| Kollation: | 4 Seiten |
| DOI: | 10.1088/1742-6596/200/1/012160 |
| Zugehörige Links: | |
| Kurzbeschreibung (Abstract): | Substitution of nickel by copper in the heavy fermion system CeNi₉₋ₓCuₓGe₄ alters the local crystal field environment of the Ce³⁺-ions. This leads to a quantum phase transition near x ≈ 0.4, which is not only driven by the competition between Kondo effect and RKKY interaction, but also by a reduction of an effectively fourfold to a twofold degenerate crystal field ground state. To study the consequences of a changing crystal field in CeNi₈CuGe₄ on its Kondo properties, inelastic neutron scattering (INS) experiments were performed. Two well-defined crystal field transitions were observed in the energy-loss spectra at 4K. The crystal field level scheme determined by neutron spectroscopy is compared with results from specific heat measurements. |
| ID-Nummer: | Artikel-ID: 012160 |
| Zusätzliche Informationen: | International Conference on Magnetism (ICM 2009) |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 500 Naturwissenschaften 600 Technik, Medizin, angewandte Wissenschaften > 660 Technische Chemie |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Strukturforschung |
| Hinterlegungsdatum: | 13 Feb 2024 07:26 |
| Letzte Änderung: | 13 Feb 2024 07:26 |
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Verfügbare Versionen dieses Eintrags
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Crystal field studies on the heavy fermion compound CeNi₈CuGe₄. (deposited 12 Feb 2024 15:06)
- Crystal field studies on the heavy fermion compound CeNi₈CuGe₄. (deposited 13 Feb 2024 07:26) [Gegenwärtig angezeigt]
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