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@ARTICLE{Lytvynenko:607143,
author = {Lytvynenko, Y. and Fedchenko, O. and Chernov, S. V. and
Babenkov, S. and Vasilyev, Dmitry and Tkach, O. and
Gloskovskii, A. and Peixoto, T. R. F. and Schlueter, C. and
Grigorev, V. and Filianina, M. and Sobolev, S. and Kleibert,
A. and Kläui, M. and Demsar, J. and Schoenhense, Gerd and
Jourdan, M. and Elmers, Hans-Joachim},
title = {{C}ontrol of the asymmetric band structure in {M}n$_2${A}u
by a ferromagnetic driver layer},
journal = {Physical review / B},
volume = {108},
number = {10},
issn = {2469-9950},
address = {Woodbury, NY},
publisher = {APS},
reportid = {PUBDB-2024-01786},
pages = {104413},
year = {2023},
abstract = {Hard x-ray angle-resolved photoemission spectroscopy
reveals the momentum-resolved band structure in an epitaxial
Mn$_2$Au(001) film capped by a 2-nm-thick ferromagnetic
permalloy layer. By magnetizing the permalloy capping layer,
the exceptionally strong exchange bias aligns the Néel
vector in the Mn$_2$Au(001) film accordingly. Uncompensated
interface Mn magnetic moments in Mn$_2$Au were identified as
the origin of the exchange bias using x-ray magnetic
circular dichroism in combination with photoelectron
emission microscopy. Using time-of-flight momentum
microscopy, we measure the asymmetry of the band structure,
E(k)≠E(−k), in Mn$_2$Au resulting from the homogeneous
orientation of the Néel vector. Comparison with theory
shows that the Néel vector, determined by the magnetic
moment of the top Mn layer, is antiparallel to the permalloy
magnetization. The experimental results demonstrate that
hard x-ray photoemission spectroscopy can measure the band
structure of epitaxial layers beneath a metallic capping
layer and corroborate the asymmetric band structure in
Mn$_2$Au that was previously inferred only indirectly.},
cin = {FS-PETRA-S / DOOR ; HAS-User},
ddc = {530},
cid = {I:(DE-H253)FS-PETRA-S-20210408 /
I:(DE-H253)HAS-User-20120731},
pnm = {632 - Materials – Quantum, Complex and Functional
Materials (POF4-632) / 6G3 - PETRA III (DESY) (POF4-6G3) /
DFG project 290319996 - Spin+Bahn-Wechselwirkung: Orbitronik
und Spin-Bahn Effekte (A01) (290319996) / DFG project
290329451 - Spin+Optische Kontrolle: Optisches Engineering
von Zuständen mit geordnetem Spin auf der fs-Zeitskala
(A02) (290329451)},
pid = {G:(DE-HGF)POF4-632 / G:(DE-HGF)POF4-6G3 /
G:(GEPRIS)290319996 / G:(GEPRIS)290329451},
experiment = {EXP:(DE-H253)P-P22-20150101},
typ = {PUB:(DE-HGF)16},
UT = {WOS:001127441900003},
doi = {10.1103/PhysRevB.108.104413},
url = {https://bib-pubdb1.desy.de/record/607143},
}