Deutsch
 
Hilfe Datenschutzhinweis Impressum
  DetailsucheBrowse
  1. Datensatz ansehen / 
  2. Datensatz Übersicht

Datensatz

DATENSATZ AKTIONENEXPORT
Zur Ablage hinzufügen
  Lokale TagsFreigabegeschichteDetailsÜbersicht

Freigegeben
Zeitschriftenartikel

Photoemission signature of the competition between magnetic order and Kondo effect in CeCoGe3

MPG-Autoren
/persons/resource/persons126861

Steglich,  Frank
Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

Externe Ressourcen
Es sind keine externen Ressourcen hinterlegt
Volltexte (beschränkter Zugriff)
Für Ihren IP-Bereich sind aktuell keine Volltexte freigegeben.
Volltexte (frei zugänglich)
Es sind keine frei zugänglichen Volltexte in PuRe verfügbar
Ergänzendes Material (frei zugänglich)
Es sind keine frei zugänglichen Ergänzenden Materialien verfügbar
Zitation

Li, P., Ye, H., Hu, Y., Fang, Y., Xiao, Z., Wu, Z., et al. (2023). Photoemission signature of the competition between magnetic order and Kondo effect in CeCoGe3. Physical Review B, 107(20): L201104, pp. 1-6. doi:10.1103/PhysRevB.107.L201104.


Zitierlink: https://hdl.handle.net/21.11116/0000-000D-65D5-1
Zusammenfassung
The competition between magnetic order and Kondo effect is essential for the rich physics of heavy fermion systems. Nevertheless, how such competition is manifested in the quasiparticle bands in a real periodic lattice remains elusive in spectroscopic experiments. Here we report a high-resolution photoemission study of the antiferromagnetic Kondo lattice system CeCoGe3 with a high TN1 of 21 K. Our measurements reveal a weakly dispersive 4 f band at the Fermi level near the Z point, arising from a moderate Kondo effect. The intensity of this heavy 4 f band exhibits a logarithmic increase with lowering temperature and begins to deviate from this Kondo-like behavior below -25 K, just above TN1, and eventually ceases to grow below -12 K. Our work provides direct spectroscopic evidence for the competition between magnetic order and the Kondo effect in a Kondo lattice system with local-moment antiferromagnetism, indicating a distinct scenario for the microscopic coexistence and competition of these phenomena, which might be related to the real-space modulation.