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@ARTICLE{Karthein:1053079,
author = {Karthein, Jan and Buchhorn, Jonas and Underwood, Kaycee and
Jalil, Abdur Rehman and Vaßen-Carl, Max and Schüffelgen,
Peter and Grützmacher, Detlev and Schäpers, Thomas},
title = {{C}ontrolling the magnetotransport properties of magnetic
topological insulator {C}r x ( {B}i y {S}b 1 − y ) 2 − x
{T}e 3 thin films via molecular beam epitaxy},
journal = {Physical review materials},
volume = {9},
number = {12},
issn = {2475-9953},
address = {College Park, MD},
publisher = {APS},
reportid = {FZJ-2026-01419},
pages = {124202},
year = {2025},
abstract = {In this work we present a systematic in-depth study of how
we can alter the magnetotransport properties of magnetic
topological insulator thin films by tuning the parameters of
the molecular-beam epitaxy. First, we show how a varying
substrate temperature changes the surface morphology and,
when chosen properly, leads to a high crystal quality. Next,
the effect of the chromium concentration on the film
roughness and crystal quality is investigated. Finally, both
the substrate temperature and the chromium concentration are
investigated with respect to their effect on the
magnetotransport properties of the magnetic topological
insulator thin films. It becomes apparent that the substrate
temperature and the chromium concentration can be used to
tune the Fermi level of the film which allows to make the
material intrinsically charge neutral. A very low chromium
concentration furthermore allows to tune the magnetic
topological insulator into a regime where strong
superconducting correlations can be expected when combining
the material with a superconductor.},
cin = {PGI-9 / PGI-10},
ddc = {530},
cid = {I:(DE-Juel1)PGI-9-20110106 / I:(DE-Juel1)PGI-10-20170113},
pnm = {5222 - Exploratory Qubits (POF4-522) / DFG project
G:(GEPRIS)491798118 - Magnetische topologische Isolatoren
für robuste Majorana Zustände (491798118) / DFG project
G:(GEPRIS)390534769 - EXC 2004: Materie und Licht für
Quanteninformation (ML4Q) (390534769)},
pid = {G:(DE-HGF)POF4-5222 / G:(GEPRIS)491798118 /
G:(GEPRIS)390534769},
typ = {PUB:(DE-HGF)16},
doi = {10.1103/8m2h-83zm},
url = {https://juser.fz-juelich.de/record/1053079},
}