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@ARTICLE{Myczak:860440,
author = {Młyńczak, E. and Müller, M. C. T. D. and Gospodarič, P.
and Heider, T. and Aguilera, I. and Bihlmayer, G. and
Gehlmann, M. and Jugovac, M. and Zamborlini, G. and Tusche,
C. and Suga, S. and Feyer, V. and Plucinski, L. and
Friedrich, Christoph and Blügel, S. and Schneider, C. M.},
title = {{K}ink far below the {F}ermi level reveals new
electron-magnon scattering channel in {F}e},
journal = {Nature Communications},
volume = {10},
number = {1},
issn = {2041-1723},
address = {[London]},
publisher = {Nature Publishing Group UK},
reportid = {FZJ-2019-01194},
pages = {505},
year = {2019},
abstract = {Many properties of real materials can be modeled using ab
initio methods within a single-particle picture. However,
for an accurate theoretical treatment of excited states, it
is necessary to describe electron-electron correlations
including interactions with bosons: phonons, plasmons, or
magnons. In this work, by comparing spin- and
momentum-resolved photoemission spectroscopy measurements to
many-body calculations carried out with a newly developed
first-principles method, we show that a kink in the
electronic band dispersion of a ferromagnetic material can
occur at much deeper binding energies than expected
(Eb = 1.5 eV). We demonstrate that the observed
spectral signature reflects the formation of a many-body
state that includes a photohole bound to a coherent
superposition of renormalized spin-flip excitations. The
existence of such a many-body state sheds new light on the
physics of the electron-magnon interaction which is
essential in fields such as spintronics and Fe-based
superconductivity.},
cin = {IAS-1 / PGI-1 / JARA-FIT / JARA-HPC / PGI-6 / IEK-5},
ddc = {500},
cid = {I:(DE-Juel1)IAS-1-20090406 / I:(DE-Juel1)PGI-1-20110106 /
$I:(DE-82)080009_20140620$ / $I:(DE-82)080012_20140620$ /
I:(DE-Juel1)PGI-6-20110106 / I:(DE-Juel1)IEK-5-20101013},
pnm = {142 - Controlling Spin-Based Phenomena (POF3-142) / 143 -
Controlling Configuration-Based Phenomena (POF3-143)},
pid = {G:(DE-HGF)POF3-142 / G:(DE-HGF)POF3-143},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:30705281},
UT = {WOS:000457290300001},
doi = {10.1038/s41467-019-08445-1},
url = {https://juser.fz-juelich.de/record/860440},
}