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.
NASA'S OSIRIS-REx spacecraft slingshots past Earth
25.09.2017 | NASA/Goddard Space Flight Center
Hope to discover sure signs of life on Mars? New research says look for the element vanadium
22.09.2017 | University of Kansas
A warming planet
For the first time, physicists have successfully imaged spiral magnetic ordering in a multiferroic material. These materials are considered highly promising candidates for future data storage media. The researchers were able to prove their findings using unique quantum sensors that were developed at Basel University and that can analyze electromagnetic fields on the nanometer scale. The results – obtained by scientists from the University of Basel’s Department of Physics, the Swiss Nanoscience Institute, the University of Montpellier and several laboratories from University Paris-Saclay – were recently published in the journal Nature.
Multiferroics are materials that simultaneously react to electric and magnetic fields. These two properties are rarely found together, and their combined...
19.09.2017 | Event News
12.09.2017 | Event News
06.09.2017 | Event News
25.09.2017 | Physics and Astronomy
25.09.2017 | Health and Medicine
22.09.2017 | Life Sciences