Strong Rashba Effect and Different f−d Hybridization Phenomena at the Surface of the Heavy-Fermion Superconductor CeIrIn5
Artikel i vetenskaplig tidskrift, 2022

New temperature scales and remarkable differences from bulk properties have increasingly placed the surfaces of strongly correlated f materials into the focus of research activities. Applying first-principles calculations and angle-resolved photoelectron spectroscopy measurements, a strong Rashba effect and spin-split surface states at the CeIn surface of the heavy-fermion superconductor CeIrIn5 are revealed. The unveiled 4f-derived electron landscape is remarkably distinct for surface and bulk Ce implying the existence of novel temperature scales near the surface region in this material. These results show that ab initio calculations can reliably predict the unusual electronic and spin structure of surfaces of strongly correlated 4f systems where Rashba spin-orbit-coupling phenomena emerge. It is suggested that the structural blocks of such materials can be combined with magnetically active layers for engineering of novel nanostructural objects with appropriate substrates where the diversity of f-driven properties can be applied for the development of novel functionalities.

electronic structure

heavy fermion

surface state

Författare

Max Mende

Technische Universität Dresden

Khadiza Ali

Lunds universitet

Chalmers, Mikroteknologi och nanovetenskap, Kvantkomponentfysik

Georg Poelchen

Technische Universität Dresden

European Synchrotron Radiation Facility (ESRF)

Susanne Schulz

Technische Universität Dresden

Vladislav Mandic

Johann Wolfgang Goethe Universität Frankfurt am Main

Artem V. Tarasov

Saint Petersburg State University - Spsu

C. M. Polley

Lunds universitet

Alexander Generalov

Lunds universitet

Alexander V. Fedorov

Leibniz-Institut für Festkörper- und Werkstoffforschung Dresden

Helmholtz

Monika Güttler

Technische Universität Dresden

Clemens Laubschat

Technische Universität Dresden

Kristin Kliemt

Johann Wolfgang Goethe Universität Frankfurt am Main

Yury M. Koroteev

Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Sciences

E. V. Chulkov

Donostia International Physics Center

Centro de Física de Materiales (CSIC-UPV/EHU)

Universidad del Pais Vasco / Euskal Herriko Unibertsitatea

Saint Petersburg State University - Spsu

Kurt Kummer

European Synchrotron Radiation Facility (ESRF)

Cornelius Krellner

Johann Wolfgang Goethe Universität Frankfurt am Main

Dmitry Yu Usachov

Saint Petersburg State University - Spsu

Denis V. Vyalikh

Basque Foundation for Science (Ikerbasque)

Donostia International Physics Center

Advanced Electronic Materials

2199-160X (ISSN) 2199160x (eISSN)

Vol. 8 3 2100768

Ämneskategorier

Materialkemi

Annan fysik

Den kondenserade materiens fysik

DOI

10.1002/aelm.202100768

Mer information

Senast uppdaterat

2022-04-05