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.
surface state
electronic structure
heavy fermion
Författare
Max Mende
Technische Universität Dresden
Khadiza Ali
Chalmers, Mikroteknologi och nanovetenskap, Kvantkomponentfysik
Lunds universitet
Georg Poelchen
European Synchrotron Radiation Facility (ESRF)
Technische Universität Dresden
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-Gemeinschaft
Helmholtz-Gemeinschaft Deutscher Forschungszentren
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
Consejo Superior de Investigaciones Científicas (CSIC)
Saint Petersburg State University - Spsu
Donostia International Physics Center
Universidad del Pais Vasco / Euskal Herriko Unibertsitatea
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
Donostia International Physics Center
Basque Foundation for Science (Ikerbasque)
Advanced Electronic Materials
2199-160X (ISSN) 2199160x (eISSN)
Vol. 8 3 2100768Ämneskategorier (SSIF 2011)
Materialkemi
Annan fysik
Den kondenserade materiens fysik
DOI
10.1002/aelm.202100768