Optical spectroscopy and ultrafast pump-probe studies on the heavy-fermion compound CePt2In7

Chen, R. Y.; Zhang, S. J.; Bauer, E. D.; Thompson, J. D.; Wang, N. L.

doi:10.1103/PhysRevB.94.035161

Title: Optical spectroscopy and ultrafast pump-probe studies on the heavy-fermion compound ${CePt}_{2} {In}_{7}$

Journal Article · Fri Jul 29 04:00:00 UTC 2016 · Physical Review B

DOI: https://doi.org/10.1103/PhysRevB.94.035161 · OSTI ID:1364535

Chen, R. Y. ^[1]; Zhang, S. J. ^[1];

^[2];

^[2]; Wang, N. L. ^[3]

Peking Univ., Beijing (China)
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Peking Univ. and Collaborative Innovation Center of Quantum Matter, Beijing (China)

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 the CeIn ₃ -derived heavy-fermion family. Here, we identify clear and typical hybridization spectral structures at low temperature from the two different spectroscopy probes. But, 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. Our results clearly indicate that the Kondo interaction and hybridizations exist in the antiferromagnetic compounds but with weaker strength.

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Research Organization:: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)

Grant/Contract Number:: AC52-06NA25396

OSTI ID:: 1364535

Report Number(s):: LA-UR--16-21959

Journal Information:: Physical Review B, Journal Name: Physical Review B Journal Issue: 3 Vol. 94; ISSN 2469-9950; ISSN PRBMDO

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Crystal electric field splitting and f -electron hybridization in heavy-fermion CePt 2 In 7 Duan, Yu-Xia; Zhang, Cheng; Rusz, Ján Physical Review B, Vol. 100, Issue 8 https://doi.org/10.1103/physrevb.100.085141	journal	August 2019
Investigation of the commensurate magnetic structure in the heavy-fermion compound CePt 2 In 7 using magnetic resonant x-ray diffraction Gauthier, Nicolas; Wermeille, Didier; Casati, Nicola Physical Review B, Vol. 96, Issue 6 https://doi.org/10.1103/physrevb.96.064414	journal	August 2017

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