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Title: Edge-states ferromagnetism of WS{sub 2} nanosheets

Abstract

The multilayer WS{sub 2} nanosheets prepared from WO{sub 3} nanowires exhibit strong ferromagnetic behavior with saturation magnetization (M{sub S}) of 0.0058 emu/g and coercive field (H{sub C}) of 92 Oe at room temperature. By decreasing the temperature down to 3 K the H{sub c} is increased up to 1115 Oe, revealing the existence of long-range magnetic ordering. Density functional theory spin-polarized calculations predict that strong ferromagnetic moments in WS{sub 2} nanosheets are attributed to the zigzag edge sulphur S and tungsten W atoms. Our findings also suggest that the WS{sub 2} nanosheets with a high density of edge spins could be used to fabricate spintronics devices, which are circuits utilizing the spin of the electron to process and store information.

Authors:
; ; ; ; ;  [1]
  1. State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, P. O. Box 912, Beijing 100083 (China)
Publication Date:
OSTI Identifier:
22300218
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 104; Journal Issue: 20; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; COERCIVE FORCE; DENSITY FUNCTIONAL METHOD; FERROMAGNETISM; LAYERS; MAGNETIZATION; NANOSTRUCTURES; QUANTUM WIRES; SATURATION; SHEETS; SPIN; SPIN ORIENTATION; TEMPERATURE RANGE 0273-0400 K; TUNGSTEN OXIDES; TUNGSTEN SULFIDES; NANOWIRES

Citation Formats

Huo, Nengjie, Li, Yan, Kang, Jun, Li, Renxiong, Xia, Qinglin, and Li, Jingbo. Edge-states ferromagnetism of WS{sub 2} nanosheets. United States: N. p., 2014. Web. doi:10.1063/1.4875582.
Huo, Nengjie, Li, Yan, Kang, Jun, Li, Renxiong, Xia, Qinglin, & Li, Jingbo. Edge-states ferromagnetism of WS{sub 2} nanosheets. United States. https://doi.org/10.1063/1.4875582
Huo, Nengjie, Li, Yan, Kang, Jun, Li, Renxiong, Xia, Qinglin, and Li, Jingbo. 2014. "Edge-states ferromagnetism of WS{sub 2} nanosheets". United States. https://doi.org/10.1063/1.4875582.
@article{osti_22300218,
title = {Edge-states ferromagnetism of WS{sub 2} nanosheets},
author = {Huo, Nengjie and Li, Yan and Kang, Jun and Li, Renxiong and Xia, Qinglin and Li, Jingbo},
abstractNote = {The multilayer WS{sub 2} nanosheets prepared from WO{sub 3} nanowires exhibit strong ferromagnetic behavior with saturation magnetization (M{sub S}) of 0.0058 emu/g and coercive field (H{sub C}) of 92 Oe at room temperature. By decreasing the temperature down to 3 K the H{sub c} is increased up to 1115 Oe, revealing the existence of long-range magnetic ordering. Density functional theory spin-polarized calculations predict that strong ferromagnetic moments in WS{sub 2} nanosheets are attributed to the zigzag edge sulphur S and tungsten W atoms. Our findings also suggest that the WS{sub 2} nanosheets with a high density of edge spins could be used to fabricate spintronics devices, which are circuits utilizing the spin of the electron to process and store information.},
doi = {10.1063/1.4875582},
url = {https://www.osti.gov/biblio/22300218}, journal = {Applied Physics Letters},
issn = {0003-6951},
number = 20,
volume = 104,
place = {United States},
year = {2014},
month = {5}
}