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.
Postannealed resistivity of smooth (roughness <0.5 nm rms) MgB2 films (y axis) controlled by initial magnesium content in the as-deposited Mg–B composite films (resistivity along the x axis). Reducing the magnesium content (i.e., decreasing the relative RF power on the magnesium target) increases as-deposited resistivity as well as postannealed resistivity by forming boron-rich MgB2 films.
