Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
(a) Crystal structure of WTe2 along the a-axis direction, showing the orthorhombic unit cell. (b) Atomic displacements of Raman active modes in WTe2 bulk and monolayer. Here, “×” and “·” indicate that the Te atoms move into and out of the bc plane, respectively.
