Strong Rashba Effect and Different f−d Hybridization Phenomena at the Surface of the Heavy-Fermion Superconductor CeIrIn5
Journal article, 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

Author

Max Mende

Technische Universität Dresden

Khadiza Ali

Lund University

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

Georg Poelchen

Technische Universität Dresden

European Synchrotron Radiation Facility (ESRF)

Susanne Schulz

Technische Universität Dresden

Vladislav Mandic

Goethe University Frankfurt

Artem V. Tarasov

Saint Petersburg State University - Spsu

C. M. Polley

Lund University

Alexander Generalov

Lund University

Alexander V. Fedorov

Leibniz Institute for Solid State and Materials Research Dresedn

Helmholtz

Monika Güttler

Technische Universität Dresden

Clemens Laubschat

Technische Universität Dresden

Kristin Kliemt

Goethe University Frankfurt

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)

University of the Basque Country (UPV/EHU)

Saint Petersburg State University - Spsu

Kurt Kummer

European Synchrotron Radiation Facility (ESRF)

Cornelius Krellner

Goethe University Frankfurt

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

Subject Categories

Materials Chemistry

Other Physics Topics

Condensed Matter Physics

DOI

10.1002/aelm.202100768

More information

Latest update

4/5/2022 5