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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 |
Appears in Collections: | Staff Publications Elements |
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