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@PHDTHESIS{Boban:1010815,
author = {Boban, Honey},
othercontributors = {Morgenstern, Markus and Plucinski, Lukasz},
title = {{U}nderstanding circular dichroic angle-resolved
photoemission from quantum materials},
school = {RWTH Aachen University},
type = {Dissertation},
address = {Aachen},
publisher = {RWTH Aachen University},
reportid = {RWTH-2025-04342},
pages = {1 Online-Ressource : Illustrationen},
year = {2025},
note = {Veröffentlicht auf dem Publikationsserver der RWTH Aachen
University; Dissertation, RWTH Aachen University, 2025},
abstract = {AbstractThe physics of two-dimensional (2D) material has
become a rapidly expanding field ofresearch due to their
unique electrical, optical, and mechanical properties, as
well astheir wide range of potential applications. The
electronic band structure of these ma-terials strongly
influences their quantum transport properties, which is
critical for next-generation quantum devices based on
phenomena such as the quantum Hall effect, spinHall effect,
and orbital Hall effect. Consequently, a detailed
characterization of the bandstructure, particularly focusing
on the orbital angular momentum (OAM) and spin angu-lar
momentum (SAM), is essential for realizing the practical
applications of 2D materials. Circular dichroic
angle-resolved photoemission spectroscopy (CD-ARPES) is a
widelyused technique for investigating the OAM of bands, as
it has been thought to be able toprobe the OAM of the band
structure. This thesis provides an in-depth analysis of
various contributions to the CD-ARPESspectra, including the
photoionization process, experimental geometry, inter-atomic
in-terference, and multiple scattering. These factors are
explored in the context of twotechnologically relevant 2D
materials, graphene and WSe2, both of which exhibit
uniqueelectronic and optical properties that are of interest
for quantum and electronic applica-tions. In addition, the
thesis provides a detailed characterization of the
electronic band struc-ture of 2D magnetic materials,
specifically Cr2Ge2Te6 and Fe3GeTe2. Recognizing
theimportance of magnetic domain structure in determining
the overall magnetic properties, this work also presents a
thickness-dependent study of the magnetic domain structure
inFe3GeTe2, shedding light on how reduced dimensions
influence the magnetic behavior atthe nanoscale.},
cin = {132310 / 130000},
ddc = {530},
cid = {$I:(DE-82)132310_20140620$ / $I:(DE-82)130000_20140620$},
typ = {PUB:(DE-HGF)11},
doi = {10.18154/RWTH-2025-04342},
url = {https://publications.rwth-aachen.de/record/1010815},
}
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