Device controls electron spin at room temperature
This is a major breakthrough, as previous devices that used magnetic semiconductors (GaMnAs) and controlled electron spin were only functional at 100 K (or -173 Celsius).
By controlling the spin of electrons, the new device represents a significant advance in semiconductor efficiency and speed.
The new device is also an advance on earlier experimental models because it uses only 5-6 volts to switch the bias of the electrons. Previous cold-temperature devices used much higher voltage.
The research was published April 2 in Applied Physics Letters.The paper can be found at http://tinyurl.com/d55kmw.
The research team included NC State professors S.M. Bedair and Nadia El-Masry; adjunct professor J.M. Zavada; post-doctoral research fellow N. Nepal; and graduate students Oliver Luen and P. Frajtag. The research was supported by the U.S. Army Research Office.
Media Contact
All latest news from the category: Physics and Astronomy
This area deals with the fundamental laws and building blocks of nature and how they interact, the properties and the behavior of matter, and research into space and time and their structures.
innovations-report provides in-depth reports and articles on subjects such as astrophysics, laser technologies, nuclear, quantum, particle and solid-state physics, nanotechnologies, planetary research and findings (Mars, Venus) and developments related to the Hubble Telescope.
Newest articles
Economies take off with new airports
A global study by an SUTD researcher in collaboration with scientists from Japan explores the economic benefits of airport investment in emerging economies using nighttime satellite imagery. Be it for…
CAR T–cell immunotherapy targets
Pan-cancer analysis uncovers a new class of promising CAR T–cell immunotherapy targets. Scientists at St. Jude Children’s Research Hospital found 156 potential CAR targets across the brain and solid tumors,…
Stony coral tissue loss disease
… is shifting the ecological balance of Caribbean reefs. The outbreak of a deadly disease called stony coral tissue loss disease is destroying susceptible species of coral in the Caribbean…
