文献类型：期刊文献

英文题名：Ferromagnetism in exfoliated tungsten disulfide nanosheets

作者：Mao, Xingze[1];Xu, Yan[2];Xue, Qixin[1];Wang, Weixiao[1];Gao, Daqiang[1]

第一作者：Mao, Xingze

通讯作者：Gao, DQ[1]

机构：[1]Lanzhou Univ, Key Lab Magnetism & Magnet Mat MOE, Lanzhou 730000, Peoples R China;[2]Xinxiang Univ, Dept Phys, Xinxiang 453003, Peoples R China

第一机构：Lanzhou Univ, Key Lab Magnetism & Magnet Mat MOE, Lanzhou 730000, Peoples R China

通讯机构：[1]corresponding author), Lanzhou Univ, Key Lab Magnetism & Magnet Mat MOE, Lanzhou 730000, Peoples R China.

年份：2013

卷号：8

期号：1

起止页码：1-6

外文期刊名：NANOSCALE RESEARCH LETTERS

收录：;EI(收录号：20134616980866);Scopus(收录号：2-s2.0-84887285535);WOS:【SCI-EXPANDED(收录号:WOS:000326898500001)】；

基金：This work is supported by the National Basic Research Program of China (grant no. 2012CB933101), NSFC (grant nos. 11034004 and 51202101), the Fundamental Research Funds for the Central Universities (no. lzujbky-2012-28), and the Specialized Research Fund for the Doctoral Program of Higher Education.

语种：英文

外文关键词：WS2; ferromagnetism; nanosheet

摘要：Two-dimensional-layered transition metal dichalcogenides nanosheets have attracted tremendous attention for their promising applications in spintronics because the atomic-thick nanosheets can not only enhance the intrinsic properties of their bulk counterparts, but also give birth to new promising properties. In this paper, ultrathin tungsten disulfide (WS2) nanosheets were gotten by liquid exfoliation route from its bulk form using dimethylformamide (DMF). Compared to the antiferromagnetism bulk WS2, ultrathin WS2 nanosheets show intrinsic room-temperature ferromagnetism (FM) with the maximized saturation magnetization of 0.004 emu/g at 10 K, where the appearance of FM in the nanosheets is partly due to the presence of zigzag edges in the magnetic ground state at the grain boundaries.