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@ARTICLE{Schmitt:461721,
author = {Schmitt, Matthias and Kirilmaz, Ozan Seyitali and Chernov,
S. and Babenkov, S. and Vasilyev, D. and Fedchenko, Olena
and Medjanik, K. and Matveev, Yury and Gloskovskii, A. and
Schlueter, C. and Winkelmann, A. and Dudy, Lenart and
Elmers, Hans-Joachim and Schoenhense, Gerd and Sing, Michael
and Claessen, Ralph},
title = {{B}ulk spin polarization of magnetite from spin-resolved
hard x-ray photoelectron spectroscopy},
journal = {Physical review / B},
volume = {104},
number = {4},
issn = {2469-9969},
address = {Woodbury, NY},
publisher = {Inst.},
reportid = {PUBDB-2021-03027},
pages = {045129 (1-10)},
year = {2021},
abstract = {There is broad consensus that magnetite (Fe$_3$O$_4$) is a
promising material for spintronics applications due to its
high degree of spin polarization at the Fermi level.
However, previous attempts to measure the spin polarization
by spin-resolved photoemission spectroscopy have been
hampered by the use of low photon energies resulting in high
surface sensitivity. The surfaces of magnetite, though, tend
to reconstruct due to their polar nature, and thus their
magnetic and electronic properties may strongly deviate from
each other and from the bulk, dependent on their orientation
and specific preparation. In this study, we determine the
intrinsic—i.e., bulk—spin polarization of magnetite by
spin-resolved photoelectron spectroscopy on (111)-oriented
thin films, epitaxially grown on ZnO(0001), with hard
x-rays, making it a truly bulk-sensitive probe. This becomes
possible by using a novel, specially adapted momentum
microscope, featuring time-of-flight energy recording and an
imaging spin-filter.},
cin = {FS-PS / FS-PET-D / FS-PET-S},
ddc = {530},
cid = {I:(DE-H253)FS-PS-20131107 / I:(DE-H253)FS-PET-D-20190712 /
I:(DE-H253)FS-PET-S-20190712},
pnm = {632 - Materials – Quantum, Complex and Functional
Materials (POF4-632) / 6G3 - PETRA III (DESY) (POF4-6G3) /
FS-Proposal: I-20181063 (I-20181063) / FS-Proposal:
I-20181092 (I-20181092) / FS-Proposal: I-20190546
(I-20190546) / DFG project 390858490 - EXC 2147:
Komplexität und Topologie in Quantenmaterialien (CT.QMAT)
(390858490)},
pid = {G:(DE-HGF)POF4-632 / G:(DE-HGF)POF4-6G3 /
G:(DE-H253)I-20181063 / G:(DE-H253)I-20181092 /
G:(DE-H253)I-20190546 / G:(GEPRIS)390858490},
experiment = {EXP:(DE-H253)P-P22-20150101},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000674536000001},
doi = {10.1103/PhysRevB.104.045129},
url = {https://bib-pubdb1.desy.de/record/461721},
}