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@ARTICLE{Lu:888205,
author = {Lu, Chun-I and Huang, Chih-Heng and Ou Yang, Kui-Hon and
Simbulan, Kristan Bryan and Li, Kai-Shin and Li, Feng and
Qi, Junjie and Jugovac, Matteo and Cojocariu, Iulia and
Feyer, Vitaliy and Tusche, Christian and Lin, Minn-Tsong and
Chuang, Tzu-Hung and Lan, Yann-Wen and Wei, Der-Hsin},
title = {{S}pontaneously induced magnetic anisotropy in an ultrathin
{C}o/{M}o{S} 2 heterojunction},
journal = {Nanoscale horizons},
volume = {5},
number = {7},
issn = {2055-6764},
address = {Cambridge},
publisher = {Royal Society of Chemistry},
reportid = {FZJ-2020-04759},
pages = {1058 - 1064},
year = {2020},
abstract = {Magnetic anisotropy (MA) is a material preference that
involves magnetization aligned along a specific direction
and provides a basis for spintronic devices. Here we report
the first observation of strong MA in a cobalt–molybdenum
disulfide (Co/MoS2) heterojunction. Element-specific
magnetic images recorded with an X-ray photoemission
electron microscope (PEEM) reveal that ultrathin Co films,
of thickness 5 monolayers (ML) and above, form micrometer
(μm)-sized domains on monolayer MoS2 flakes of size tens of
μm. Image analysis shows that the magnetization of these Co
domains is oriented not randomly but in directions
apparently correlated with the crystal structure of the
underlying MoS2. Evidence from micro-area X-ray
photoelectron spectra (μ-XPS) further indicates that a
small amount of charge is donated from cobalt to sulfur upon
direct contact between Co and MoS2. As the ferromagnetic
behavior found for Co/MoS2 is in sharp contrast with that
reported earlier for non-reactive Fe/MoS2, we suggest that
orbital hybridization at the interface is what makes Co/MoS2
different. Our report provides micro-magnetic and
micro-spectral evidence that consolidates the knowledge
required to build functional heterojunctions based on
two-dimensional (2D) materia},
cin = {PGI-6},
ddc = {540},
cid = {I:(DE-Juel1)PGI-6-20110106},
pnm = {522 - Controlling Spin-Based Phenomena (POF3-522)},
pid = {G:(DE-HGF)POF3-522},
typ = {PUB:(DE-HGF)16},
pubmed = {32400801},
UT = {WOS:000543912700012},
doi = {10.1039/D0NH00108B},
url = {https://juser.fz-juelich.de/record/888205},
}