Optical spectroscopy and ultrafast pump-probe studies on the heavy fermion compound CePt${}_2$In${}_7$

Abstract

We report optical spectroscopy and ultrafast pump-probe measurements on the antiferromagnetic heavy fermion compound CePt${}_2$In${}_7$, a member showing stronger two dimensionality than other compounds in CeIn${}_3$-derived heavy-fermion family. We identify clear and typical hybridization spectral structures at low temperature from the two different spectroscopy probes. However, the strength and related energy scale of the hybridization are much weaker and smaller than that in the superconducting compounds CeCoIn${}_5$ and CeIrIn${}_5$. The features are more similar to observations on the antiferromagnetic compounds CeIn${}_3$ and CeRhIn${}_5$ in the same family. The results clearly indicate that the Kondo interaction and hybridizations exist in the antiferromagnetic compounds but with weaker strength.

5 pages, 4 figures

References in corpus (6)

• The quantum critical point in CeRhIn_5: a resistivity study
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Cited by in corpus (6)

• Unveiling the Hybridization Process in a Quantum Critical Ferromagnet by Ultrafast Optical Spectroscopy
• Ultrafast Laser Driven Many-Body Dynamics and Kondo Coherence Collapse
• Angle-resolved photoemission spectroscopy study of crystal electric field in heavy fermion compound CePt2In7
• Crystal electric field splitting and f-electron hybridization in heavy fermion CePt2In7
• Investigation of the commensurate magnetic structure in heavy fermion CePt2In7 using magnetic resonant X-ray diffraction
• Nanosecond dynamics in intrinsic topological insulator ${\text{Bi}}_{2-x}{\text{Sb}}_x{\text{Se}}_3$ revealed by time-resolved optical reflectivity