Please use this identifier to cite or link to this item: https://doi.org/10.1021/acsnano.8b08926
Title: Ferromagnet/Two-Dimensional Semiconducting Transition-Metal Dichalcogenide Interface with Perpendicular Magnetic Anisotropy
Authors: Zhang, Wen 
Wong, Ping Kwan Johnny 
Zhou, Xiaochao
Rath, Ashutosh 
Huang, Zhaocong
Wang, Hongyu 
Morton, Simon A
Yuan, Jiaren
Zhang, Lei 
Chua, Rebekah 
Zeng, Shengwei 
Liu, Er
Xu, Feng
Ariando 
Chua, Daniel HC 
Feng, Yuan Ping 
van der Laan, Gerrit
Pennycook, Stephen J 
Zhai, Ya
Wee, Andrew TS 
Keywords: Science & Technology
Physical Sciences
Technology
Chemistry, Multidisciplinary
Chemistry, Physical
Nanoscience & Nanotechnology
Materials Science, Multidisciplinary
Chemistry
Science & Technology - Other Topics
Materials Science
two-dimensional materials
transition-metal dichalcogenides
spintronics
perpendicular magnetic anisotropy
X-ray magnetic circular dichroism
anisotropic orbital moment
interface
MOS2 THIN-LAYERS
MAGNETOCRYSTALLINE ANISOTROPY
MICROSCOPIC ORIGIN
SPIN-ACCUMULATION
ROOM-TEMPERATURE
MAGNETORESISTANCE
MONOLAYER
GROWTH
MULTILAYERS
DICHROISM
Issue Date: 1-Feb-2019
Publisher: AMER CHEMICAL SOC
Citation: Zhang, Wen, Wong, Ping Kwan Johnny, Zhou, Xiaochao, Rath, Ashutosh, Huang, Zhaocong, Wang, Hongyu, Morton, Simon A, Yuan, Jiaren, Zhang, Lei, Chua, Rebekah, Zeng, Shengwei, Liu, Er, Xu, Feng, Ariando, Chua, Daniel HC, Feng, Yuan Ping, van der Laan, Gerrit, Pennycook, Stephen J, Zhai, Ya, Wee, Andrew TS (2019-02-01). Ferromagnet/Two-Dimensional Semiconducting Transition-Metal Dichalcogenide Interface with Perpendicular Magnetic Anisotropy. ACS NANO 13 (2) : 2253-2261. ScholarBank@NUS Repository. https://doi.org/10.1021/acsnano.8b08926
Abstract: © 2019 American Chemical Society. Ferromagnet/two-dimensional transition-metal dichalcogenide (FM/2D TMD) interfaces provide attractive opportunities to push magnetic information storage to the atomically thin limit. Existing work has focused on FMs contacted with mechanically exfoliated or chemically vapor-deposition-grown TMDs, where clean interfaces cannot be guaranteed. Here, we report a reliable way to achieve contamination-free interfaces between ferromagnetic CoFeB and molecular-beam epitaxial MoSe 2 . We show a spin reorientation arising from the interface, leading to a perpendicular magnetic anisotropy (PMA), and reveal the CoFeB/2D MoSe 2 interface allowing for the PMA development in a broader CoFeB thickness-range than common systems such as CoFeB/MgO. Using X-ray magnetic circular dichroism analysis, we attribute generation of this PMA to interfacial d-d hybridization and deduce a general rule to enhance its magnitude. We also demonstrate favorable magnetic softness and considerable magnetic moment preserved at the interface and theoretically predict the interfacial band matching for spin filtering. Our work highlights the CoFeB/2D MoSe 2 interface as a promising platform for examination of TMD-based spintronic applications and might stimulate further development with other combinations of FM/2D TMD interfaces.
Source Title: ACS NANO
URI: https://scholarbank.nus.edu.sg/handle/10635/155110
ISSN: 1936-0851
1936-086X
DOI: 10.1021/acsnano.8b08926
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