magnetic semiconductor tagged posts

A density functional theory calculation showed the magnetic properties of a fluorinated sample of hexagonal boron nitride. This version is ferromagnetic, determined by how the fluorine atoms (red) attach to the boron and nitrogen matrix.
Credit: Ajayan Group/Rice University

Researchers turn common insulator, 2D hexagonal boron nitride, h-BN (white graphene) into a magnetic semiconductor. A little fluorine turns an insulating ceramic known as white graphene into a wide-bandgap semiconductor with magnetic properties. Rice University scientists said that could make the unique material suitable for electronics in extreme environments...

For his research, Gilbert won the physics, astronomy and engineering category for his research work and a superior rating on his poster. More than 80 graduate and undergraduate students presented their research at the conference. In addition, he accepted an offer to join the prestigious international science and engineering society.

The novel semiconductor is an alloy of cobalt, iron, chromium and aluminum in which part of the aluminum was replaced with silicon. Simeon Gilbert, a South Dakota State University physics major won 1st place at the annual Sigma Xi national conference for his work. He tested the magnetic and structural properties of a novel magnetic semiconductor material.

“Materials for computers need to work at, and somewhat above, room temperature,” Gilbert said...