Crystal electric field splitting and f -electron hybridization in heavy-fermion CePt2In7
Artikel i vetenskaplig tidskrift, 2019

We use high-resolution angle-resolved photoemission spectroscopy to investigate the electronic structure of the antiferromagnetic heavy fermion compound CePt2In7, which is a member of the CeIn3-derived heavy fermion material family. Weak hybridization among 4f electron states and conduction bands was identified in CePt2In7 at low temperature much weaker than that in the other heavy fermion compounds like CeIrIn5 and CeRhIn5. The Ce 4f spectrum shows fine structures near the Fermi energy, reflecting the crystal electric field splitting of the 4f5/21 and 4f7/21 states. Also, we find that the Fermi surface has a strongly three-dimensional topology, in agreement with density-functional theory calculations. 

© 2019 American Physical Society. 

Författare

Yu Xia Duan

Central South University

Cheng Zhang

Central South University

Ján Rusz

Uppsala universitet

Peter M. Oppeneer

Uppsala universitet

Tomasz Durakiewicz

Maria Curie-Sklodowska University in Lublin

Yasmine Sassa

Uppsala universitet

Chalmers, Fysik, Kondenserade materiens fysik

Oscar Tjernberg

Kungliga Tekniska Högskolan (KTH)

Martin Månsson

Kungliga Tekniska Högskolan (KTH)

Magnus H. Berntsen

Kungliga Tekniska Högskolan (KTH)

Fan Ying Wu

Central South University

Yin Zou Zhao

Central South University

Jiao Jiao Song

Central South University

Qi Yi Wu

Central South University

Yang Luo

Central South University

Eric D. Bauer

Los Alamos National Laboratory

J. D. Thompson

Los Alamos National Laboratory

Jian-Qiao Meng

Hunan Normal University

Central South University

Physical Review B

24699950 (ISSN) 24699969 (eISSN)

Vol. 100 8 085141

Ämneskategorier

Oorganisk kemi

Atom- och molekylfysik och optik

Den kondenserade materiens fysik

DOI

10.1103/PhysRevB.100.085141

Mer information

Senast uppdaterat

2019-09-30