In:
Advances in Engineering Technology Research, Madison Academic Press, Vol. 6, No. 1 ( 2023-08-25), p. 672-
Kurzfassung:
We present a comprehensive investigation utilizing ultrafast optical pump-probe spectroscopy to elucidate the intricate quasiparticle dynamics in the CeAgSb2 single crystal. Through our experimental endeavors, a nuanced two-phase evolution in the hybridization phenomena linking localized f moments and conduction electrons has been unveiled. This intricate process is manifest in two distinct manifestations: firstly, the discernible manifestation of hybridization fluctuations spanning the temperature range of approximately 150 K (denoted as T†) down to approximately 65 K (referred to as T*); secondly, the notable emergence of a collective hybridization phenomenon below the critical temperature, T*, as indicated by the onset of an indirect gap in the electronic structure. These discerning observations provide invaluable insights into the interplay of electronic configurations as a function of temperature in CeAgSb2, shedding light on its unique properties and behaviors.
Materialart:
Online-Ressource
ISSN:
2790-1688
DOI:
10.56028/aetr.6.1.672.2023
Sprache:
Unbekannt
Verlag:
Madison Academic Press
Publikationsdatum:
2023
