Publikationsdatum:
2018-09-28
Beschreibung:
Author(s): A. Generalov, J. Falke, I. A. Nechaev, M. M. Otrokov, M. Güttler, A. Chikina, K. Kliemt, S. Seiro, K. Kummer, S. Danzenbächer, D. Usachov, T. K. Kim, P. Dudin, E. V. Chulkov, C. Laubschat, C. Geibel, C. Krellner, and D. V. Vyalikh The authors investigate the properties of a two-dimensional Kondo lattice represented by a noncentrosymmetric Si-Ir-Si-Yb four-layer block at the surface of the heavy-fermion material YbIr 2 Si 2 . Strong spin-orbit coupling of Ir atoms induces spin polarization of two-dimensional itinerant surface states confined in this block, while the lattice of Yb 4 f moments acts as a source for coherent field interplay. Remarkably, apart from the anticipated Rashba-like splitting of the two-dimensional itinerant states, a tiny spin splitting of the Yb 4 f states of the block is also revealed. Electrons in these 4 f states interact in a temperature-dependent fashion with highly mobile spin-polarized itinerant states, gently guiding their properties. [Phys. Rev. B 98, 115157] Published Thu Sep 27, 2018
Schlagwort(e):
Electronic structure and strongly correlated systems
Print ISSN:
1098-0121
Digitale ISSN:
1095-3795
Thema:
Physik
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