GSTDTAP

浏览/检索结果: 共11条,第1-10条 帮助

限定条件                    
已选(0)清除 条数/页:   排序方式:
Filling the evidentiary gap in climate litigation 科技报告
来源:Oxford Martin School, University of Oxford. 出版年: 2021
作者:  Nature Climate Change
收藏  |  浏览/下载:4/0  |  提交时间:2021/08/26
People with disabilities faced pandemic triage biases 新闻
来源平台:EurekAlert. 发布日期:2021
作者:  admin
收藏  |  浏览/下载:3/0  |  提交时间:2021/05/07
Health policy researchers propose filling health care coverage gap to help 'near poor' 新闻
来源平台:EurekAlert. 发布日期:2021
作者:  admin
收藏  |  浏览/下载:20/0  |  提交时间:2021/04/06
The Lancet: World failing to address health needs of 630 million women and children affected by armed conflict 新闻
来源平台:EurekAlert. 发布日期:2021
作者:  admin
收藏  |  浏览/下载:10/0  |  提交时间:2021/01/28
Filling a crucial gap in aquafarming: ion beam breeding to the rescue 新闻
来源平台:EurekAlert. 发布日期:2021
作者:  admin
收藏  |  浏览/下载:2/0  |  提交时间:2021/01/22
Citizens help scientists demonstrate value of protected areas in biodiversity hotspots 新闻
来源平台:EurekAlert. 发布日期:2020
作者:  admin
收藏  |  浏览/下载:1/0  |  提交时间:2020/09/22
Why is stroke so deadly for people of African descent? 新闻
来源平台:EurekAlert. 发布日期:2020
作者:  admin
收藏  |  浏览/下载:0/0  |  提交时间:2020/08/09
Genome guardians stop and reel in DNA to correct replication errors 新闻
来源平台:EurekAlert. 发布日期:2020
作者:  admin
收藏  |  浏览/下载:0/0  |  提交时间:2020/07/20
Engineering covalently bonded 2D layered materials by self-intercalation 期刊论文
NATURE, 2020, 581 (7807) : 171-+
作者:  Shang, Jian;  Ye, Gang;  Shi, Ke;  Wan, Yushun;  Luo, Chuming;  Aihara, Hideki;  Geng, Qibin;  Auerbach, Ashley;  Li, Fang
收藏  |  浏览/下载:11/0  |  提交时间:2020/07/03

Two-dimensional (2D) materials(1-5) offer a unique platform from which to explore the physics of topology and many-body phenomena. New properties can be generated by filling the van der Waals gap of 2D materials with intercalants(6,7)  however, post-growth intercalation has usually been limited to alkali metals(8-10). Here we show that the self-intercalation of native atoms(11,12) into bilayer transition metal dichalcogenides during growth generates a class of ultrathin, covalently bonded materials, which we name ic-2D. The stoichiometry of these materials is defined by periodic occupancy patterns of the octahedral vacancy sites in the van der Waals gap, and their properties can be tuned by varying the coverage and the spatial arrangement of the filled sites(7,13). By performing growth under high metal chemical potential(14,15) we can access a range of tantalum-intercalated TaS(Se)(y), including 25% Ta-intercalated Ta9S16, 33.3% Ta-intercalated Ta7S12, 50% Ta-intercalated Ta10S16, 66.7% Ta-intercalated Ta8Se12 (which forms a Kagome lattice) and 100% Ta-intercalated Ta9Se12. Ferromagnetic order was detected in some of these intercalated phases. We also demonstrate that self-intercalated V11S16, In11Se16 and FexTey can be grown under metal-rich conditions. Our work establishes self-intercalation as an approach through which to grow a new class of 2D materials with stoichiometry- or composition-dependent properties.


  
Fighting Corruption for U.S. Economic and National Security Interests 科技报告
来源:Center for Strategic & International Studies. 出版年: 2020
作者:  Daniel F. Runde
收藏  |  浏览/下载:2/0  |  提交时间:2020/05/13