We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Field emission from Dirac and Weyl semimetals.
- Authors
Mao, Ling-Feng; Li, X.; Ning, H.; Hu, Changjun; Wang, Gaofeng
- Abstract
Based on theoretical investigation on characteristics of the field emission current of Dirac/Weyl semimetals, the dependence of the field emission current on the applied bias is deduced and studied. This theoretical study demonstrates that the field emission current of a Dirac semimetal is much smaller than that of a conventional material when they have similar carrier parameters. This makes Dirac semimetal a better candidate for gate/base electrode material than gold and other conventional metals for an ultra-thin gate oxide metal-oxide-semiconductor field effect transistor. The field emission current of a Dirac semimetal decreases with the effective electron mass, while it increases for a conventional material. This implies that such an effective mass dependence can be used as a simple criterion to probe a Dirac semimetal in practice.
- Publication
Applied Physics A: Materials Science & Processing, 2016, Vol 122, Issue 9, p1
- ISSN
0947-8396
- Publication type
Article
- DOI
10.1007/s00339-016-0377-0