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

Mende, Max ; Ali, Khadiza LU ; Poelchen, Georg ; Schulz, Susanne ; Mandic, Vladislav ; Tarasov, Artem V. ; Polley, Craig LU ; Generalov, Alexander LU ; Fedorov, Alexander V. and Güttler, Monika , et al. (2022) In Advanced Electronic Materials 8(3).
Abstract

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... (More)

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.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
electronic structure, heavy fermion, surface state
in
Advanced Electronic Materials
volume
8
issue
3
article number
2100768
publisher
Wiley-Blackwell
external identifiers
  • scopus:85120434152
ISSN
2199-160X
DOI
10.1002/aelm.202100768
language
English
LU publication?
yes
additional info
Publisher Copyright: © 2021 Wiley-VCH GmbH
id
8752762b-c6b8-41c1-9503-e815bfcacb0b
date added to LUP
2022-01-26 11:56:41
date last changed
2022-10-31 14:59:34
@article{8752762b-c6b8-41c1-9503-e815bfcacb0b,
  abstract     = {{<p>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 CeIrIn<sub>5</sub> 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.</p>}},
  author       = {{Mende, Max and Ali, Khadiza and Poelchen, Georg and Schulz, Susanne and Mandic, Vladislav and Tarasov, Artem V. and Polley, Craig and Generalov, Alexander and Fedorov, Alexander V. and Güttler, Monika and Laubschat, Clemens and Kliemt, Kristin and Koroteev, Yury M. and Chulkov, Evgueni V. and Kummer, Kurt and Krellner, Cornelius and Usachov, Dmitry Yu and Vyalikh, Denis V.}},
  issn         = {{2199-160X}},
  keywords     = {{electronic structure; heavy fermion; surface state}},
  language     = {{eng}},
  number       = {{3}},
  publisher    = {{Wiley-Blackwell}},
  series       = {{Advanced Electronic Materials}},
  title        = {{Strong Rashba Effect and Different f−d Hybridization Phenomena at the Surface of the Heavy-Fermion Superconductor CeIrIn<sub>5</sub>}},
  url          = {{http://dx.doi.org/10.1002/aelm.202100768}},
  doi          = {{10.1002/aelm.202100768}},
  volume       = {{8}},
  year         = {{2022}},
}