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

被引：11

作者：

Chen, R. Y. ^{[1
]}

Zhang, S. J. ^{[1
]}

Bauer, E. D. ^{[2
]}

Thompson, J. D. ^{[2
]}

Wang, N. L. ^{[1
,3
]}

机构：

[1] Peking Univ, Sch Phys, Int Ctr Quantum Mat, Beijing 100871, Peoples R China

[2] Los Alamos Natl Lab, MS E536, Los Alamos, NM 87545 USA

[3] Collaborat Innovat Ctr Quantum Matter, Beijing, Peoples R China

来源：

PHYSICAL REVIEW B | 2016年 / 94卷 / 03期

基金：

美国国家科学基金会;

关键词：

SINGLE-CRYSTAL; SUPERCONDUCTIVITY; CE3PDIN11; CE2PDIN8; CEIN3;

D O I：

10.1103/PhysRevB.94.035161

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report optical spectroscopy and ultrafast pump-probe measurements on the antiferromagnetic heavy-fermion compound CePt2In7, a member showing stronger two dimensionality than other compounds in the CeIn3-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 CeCoIn5 and CeIrIn5. The features are more similar to observations on the antiferromagnetic compounds CeIn3 and CeRhIn5 in the same family. The results clearly indicate that the Kondo interaction and hybridizations exist in the antiferromagnetic compounds but with weaker strength.

引用

页数：6

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